I personally really dislike backtracking to the same levels as I have been. Even if they're in a new mode, like a "dark world" or back in time, they're mostly too similar or different not to justify making a totally different and new area. It's cheap game design.
Water levels are also often poorly designed and made more frustrating than they should be. If a game ever has a water level with puzzles in it that isn't stupidly confusing in one place or another, the designer deserves a medal for revolutionising gaming.
TheKruzdawg said:
For me, any time I had to enter an Oblivion gate, I REFUSED to enter those awful NetherTunnels or caves or whatever they were called in order to get to the main tower. I did it early on in the game and got near-hopelessly lost and vowed never to do it again. They suck and they take forever. I've even resorted to swimming through lava to avoid going through the tunnels and this is often a much, much faster way to complete a Gate.
These sections were a pain to me as well, until I made my best character, and figured out this tactic:
Firstly, have high Aerobatics. Any physical class character should be able to get this if you level them for a while and do lots of jumping.
Secondly, get a 100% Fire Resistance Ring. These do appear in certain areas in the game, including one in an Oblivion Gate area, I believe.
Third, get a piece of equipment or bless it with Water Walking.
With this combination, you can pretty much hack the Oblivion Gate sections by running across lava without getting hurt or having to swim, then, get this,
leaping up the side of the towers by tapping jump continuously while moving at their walls, skipping several levels, then finish the tower, grab the sigil and get out.
Interestingly, one of the Elder Scrolls unofficial Wikis tells me that Fire Resistance doesn't make you immune to lava, but it worked for me just fine. Either way, running across quickly works well enough.