Well classes don't matter quite as much for Morrowind because the issue isn't so much which skills you choose (though that can save you some time, depending) because you can get all of your skills to 100 through hard work anyway. And there are no class restrictions on items. There are a couple of really subpar skills (like Unarmored) but even if you don't end up using one of your major chosen skills, you can still hunt down the master trainer and get a few levels out of it.
A good class guide also has to deal with what birthsign you choose, good training habits, and how to get the most out of your level-ups. Morrowind's not one of those games where you can just pick a class at the beginning and go on autopilot after that, you really have to develop your character throughout most of the game.
That said, I *ALWAYS* choose Endurance and Luck as my class's attribute bonuses, regardless of what type of character I'm playing. Always. Though I consider myself a grizzled Morrowind veteran, I'd still like to see it. Perhaps I'll see something I hadn't considered before!
You make wise points. But mine is purely for the Custom Class, not for the use of pre-generated classes. Would you care to see the basics?