The Batman.
I also love Ostrander's Spectre and Ennis' Punisher. Waid, Byrne, and Busiek do fantastic Superman stories and I thought that Perez and Rucka's Wonder Woman were superb.
Wolverine was cool back in the mid 80s into the mid 90s, but mostly as a member of the X-Men. Not much for most other Marvel heroes, though, beyond him and The Punisher.
In the end, while the concept of the hero is extremely important, it's the manner in which the writers and artists consolidate and apply the concept that makes them work. I love Rucka's Batman, but found the stories by Doug Moench in the 90s to be subpar (his 80s work was far better).