no marker to tell you where to go
Nope. Written or verbally-given directions copied to your journal, though. It's not like Morrowind hangs you completely out to dry.
Silt striders, boats, Mages Guild teleportation, propylon indexes, Mark/Recall, and Intervention spells. Those are all just as equally "fast travel" as Oblivion, just with sensible limitation.
you walk extremely, extremely slow for the first few hours. Painfully slow, much slower than in any other game you've played
Don't carry as much; encumbrance significantly impacts how fast you move. Also, be sure to pick a class or choose a birthsign that boosts the speed attribute.
The beginning is extremely frustrating to play through, the combat works on a system where even if you hit someone dead on with your sword, you can still do no damage because you "miss." For the first few hours, like 4 to 5 hours, you will be getting killed by rats and bugs because you will swing your sword 20 times before hitting once. It is incredibly frustrating.
Make sure you pick a class/race that will give you a major weapon skill of at least 40. As soon as your major weapon skill gets around 40 to 50, things will balance out very quickly. And when you get into 60-70+, you will start eating everything for breakfast. Also, don't do things like enter into battle with low fatigue, don't spam the attack button over and over again (let your weapon draw back fully), and you'll largely avoid the stereotypical "WTF I can't hit anything!" Dice-roll mechanics that actually take skills into account are a good thing. Morrowind's presentation of the visual effects of those dice-rolls are terrible, but the underlying mechanics promote character skill, which is what RPGs are kinda about.
http://sourceforge.net/projects/morrgraphext/ And the http://www.gamesas.com/bgsforums/index.php?showtopic=1047048 for effect.
There, almost all problems addressed solved.
Im guessing you're just your average gamer who doesn't have the time or patience to enjoy a game where you have to walk everywhere slowly, and fight with a sword that doesn't work, so I strongly recommend Oblivion to you. Everyone on here is a hardcoe RPG lover, and their opinions are very different from yours, trust me. They all prefer Morrowind because it's a more classic RPG experience, but I promise you, you'll prefer Morrowind.
It's a fairly large assumption to make that he's an average gamer; we've been given nothing to say one way or another. And besides, who's to say that the 'average gamer' can't appreciate Morrowind? I was a pretty average gamer myself when I first bought it on a whim.