Been a while since I've done one of these...
If I'm recalling correctly, this is the first time that Secret Invasion and Final Crisis have gone head-to-head, coming out on the same day. But for real fun super-hero comic excitement, I'd put my money on Marvel Adventures Super Heroes #4 by Paul Tobin & Alvin Lee--check out the preview here.
Your other best bet this week is the fifth issue of Kevin Huizenga's Or Else, because by my measure Huizenga's combination of innovation and entertainment places him near the top of today's cartoonists.
Other comics of interest this week include:
The latest in Warren Ellis's Apparat line, Aetheric Mechanics.
The re-issued trade collection of Bryan Talbot's The Adventures of Luther Arkwright.
The seventh issue of Terry Moore's Echo, which I'm enjoying despite its often leisurely pace.
As usual, the full listing of what's due in stores tomorrow can be found on the Comic List Website.