What leveling mod do you guys like?
Well, I like nGCD + Progress. Whatever other levelling mod(s) you opt for, Progress is often worth adding in, because it allows you to further customise the way it's done, "to the
nth degree".
edit: Oh, and re: graphics mods - utilities/addons like OBGE and/or ENB might be worth looking at. No matter what texture packs or the like you might decide on, "mods" like those can really make a huge difference. In fact, even with vanilla Oblivion graphics, they can do surprising things.
also: With regards to combat mods, how could I forget Unnecessary Violence and Deadly Reflex! :facepalm: Both are coming up for renewal (arguably, completion) very soon. WOrth keeping an eye on both, IMO.