doubleofive said:
Suggestions on #1's I should make a priority?

The 2005 restarts of Captain America and Iron Man were both pretty good. I'm not sure if issue #1 really knocks it out of the park, but the first 25 issues or so are all great.

I wish Planet Hulk had a #1 so you could read it... but it started in something like ~98 of the ongoing series.

Secret War #1 (not Secret Wars)

I'd also say House of M and and some others... but they're not really going to make sense out of context.

Astonishing X-Men #1 (2004) was pretty good.

It's funny... there are so many #1's that I consider to be poor jumping on points. Which is sort of the opposite of what they're trying to do.