I started out oblivion recently basically as knight. I was going for a heavily armored very strong knight. I just restarted an decided to go with magic. Is it just me or is magic a ton more interesting and fun? Also later in the game can become more of a magic guy with my knight character or am I stuck with this brute.
I just can't get over how much fun I was having with magic. I never go that route in any game. Basically what I'm asking is down the road no matter what you've chosen can you change it by leveling up and just by doing things in the game?
You can raise minor skills up to and beyond the level of your major skills. It doesnt matter. All that matters is that only major skills will contribute to a level up, but theres nothing stopping you from raising a minor to 100.
Last question. What exactly is a battlemage? In the end I want a character that has decent armor, who is human and can do some decent magic stuff. For instance how do I acquire the spells that always stay with you?
A Battlemage is just a Mage that specializes in Destruction, which is "battle" magic. Its hinted in the name. Destruction is the most offensive school of magic and is used in battle, so naturally a Battlemage would focus on Destruction more than any other school. They dont always wear armor, however.
Contrary to what people think, A Battlemage isnt a "melee/magic" hybrid like for example a Spellsword. A Battlemage would likely only use a weapon in close quarters. They are primarily a magic class. The "Battle" part in their name just hints towards the fact that they are a mage thats skilled in "battle magic", or in other words, Destruction.