Red Son is good, there's some Swamp Thing issues that are reasonably well thought of, and Superman Adventures is fun if you don't mind continuity-free kiddy versions of comics, which some loath with an undeserved passion. Fantastic Four... looks nice, but the best part of it is at the very end, when someone else took over to finish off the story. Ultimates 1 is great thick-eared stuff and looks fantastic, Ultimates 2 is more of the same but goes up its own arse near the end with references to other stuff and culminates in a deus ex so utterly shameless it will either make or break the book for you - though it comes about ten pages from the end of a book you're already reading and presumably paid for, so it might not really matter by that point what you think of it.
Ultimates 2 is the ultimate example of Mark Millar storytelling, however - a book that's 90 percent build-up to a bunch of bad guys getting beat by the good guys pulling out a bigger gun. My favorite bit is either Captain America fighting his Arabian lightsaber-wielding counterpart who's just stolen America, and Cap chops the guy's hands off (no subtext there, I'm sure) and shouts "HANDS OFF, ABDUL!" Or the bit where Hawkeye shouts "Darth Maul wants his lightsaber back, motherfucker!", possibly the wittiest bit of lantern-hanging in the history of writing, or the Hulk's evil counterpart going on at length about how he's smarter, faster, stronger and more invulnerable than the Hulk, and the Hulk beats him by hitting him harder than he was hitting him before, or Quicksilver defeating his evil counterpart by running faster than he did before, yet not fast enough that he overtakes the sound from his own witty soundbites - which in comics terms actually isn't that fast at all.
And then the Riders of Rohan show up to save the day.
Really.