Combat system is an important feature in TES games and RPGs in general. I want to discuss the combat system in each TES game and also how it should look in next TES game.
Beginning with Arena and Daggerfall, the combat system was simple. It was heading towards action combat system where player had control in movement and manual attacks, still with taking characters stats as the most important part. System is pretty simple - you swing your weapon with holding mouse button and moving the mouse, you can chose the direction of attack that was a nice feature.
In Morrowind combat has evolved, mostly because of fully 3D environment that gave you more control and visual indication, what is going on screen. Attacking is more annoying, because instead of calm mouse movement, you have to click every time you attack. And this infamous missing, it made combat system more unpleasant, mouse clicking can get into an attack spam. Stamina decrease when running is a pretty bad feature, it limited your movement in a combat and you had to wait or drink a stamina potion before the battle. Magic casting is pretty annoying, a lot of casting fail, it consumes your mana and time, it starts to be useful at higher skill levels. For beginning and middle characters it is underpowered.
It introduced new nice features - staggering, knockdown and blocking (that worked pretty much like dodging).
Heading to Oblivion, combat system improves more further. There's now manual blocking, no constant missing, strong attacks and improved animations. However, combat is pretty bad - it is a huge spam, just mash mouse button until your enemy dies. Tactics and skill don't matter much, you just attack and block when enemy attacks. Enemies have unbelievable amount of health and you can heal by using unlimited healing spell.
Magic is improved, I didn't like, that there are now hard limits, where you can cast certain spells at certain skill level, but annoyment is smaller in this one, because there's no failed casting anymore.
Skyrim's combat is some improvement over Oblivion. Enemies don't have that much health, but still it's a huge spam. Taking away stamina drain for normal attacks just encourages the spam. Circle strafe and attack enemy without tactics, that's repeating Oblivion mistakes.
Spells are weakened, because they work as an equipable items, that's bad for mage-melee build. I've liked, that you can now continuously cast damaging spells combine two to stronger attack and have to charge one-time casting spells.
The Elder Scrolls Online was a huge downgrade of combat system in TES games. It just took a standard MMO combat system, added some TES features like weapon attacking (with light and heavy attacks) and shield blocking, but it largely depends on using skills (typical MMO skills). It is a huge spam, you circle strafe enemy and use one skill until magicka (or stamina, that is now magicka 2.0) drains. Skills have no cooldown and casting time. Tactics don't exist.
You are informed clearly what enemy will do by telegraphs, that are geometrical figure on ground, or bright partciles over their heads. Pretty dumb, you are now hand-holded in combat.
How combat system should be in TES VI? Bethesda just must overhaul combat system, because it wasn't fun in previous games until you modded them. It should not be just a copy of previous system with few improvements - it must be completely redone.
Take a look at Dark Souls game - it has the best combat system I've ever seen in action RPG. Feels really natural and relies heavily on tactics. Let's highlight elements, that make combat unique and should go to TES VI:
- Animations and movesets - animations are directly from motion capture and feel really natural. Also each weapon type has its own moveset that makes these types unique. In TES games different weapons didn't feel unique and it looked like swinging with a wooden stick.
- Detecting hits - TES games use outdated method for detecting hit - shooting short rays based on character's and camera position, it's a system taken from FPS games. DS uses weapon's hitbox for detecting hits making it really accurate and making different movesets actually useful.
- Poise system - in TES games weapon just do damage. They don't stagger enemy, or do it in limited way. Poise opens new tactical possibilities - what armour I need? What weapon should I use? Which enemy should I attack first, or start attacking others?
- Active dodging - instead running like a freak, circle strafing and being fished for attacks. In Skyrim - running around, run away, come back, left, right, left - just to dodge attacks. It doesn't look good. Active dodging brings some skill to playing and makes combat look more realistic, also adds a playstyle for players who play with light armour and no shield. If RPG has action based combat, active dodging is very important.
I don't mention magic system, because it's poorly done in DS games (but it is going to improved in third game). TES games needs a new magic system. Magic was underpowered in TES games and didn't go well with skill level.
Magic should bring some exciting experience, be as interesting (or more?) as melee. Bring some new interesting spells, destruction should not be limited to shooting fireballs. New tactical spells, like AOE attacks, fire walls, tornadoes... imagination allows here for many interesting options.
And finally, the last concern to discuss. Combat depended on skill or player stats?
TES games are heading towards action combat, even in early games (Arena&Daggerfall) it gave more control to player. Action combat system doesn't mean character stats don't matter. They DO matter. Attack strength, health, magicka, skills, etc. - they still exist. Combat is almost impossible when fighting high leveled enemies as low level character. In Oblivion and Skyrim it wasn't noticeable, because they had this hated level scaling system.
Let's fight... I mean discuss.