So here are my thoughts on the different type of people.

1. Set it and forget it! - Just want 1 card that gets you the most travel benefit. Super easy. I am sure you can find this somewhere on this site. This is not me but works for some people.

2. Churn and Burn - Wants the most miles possible. Almost to the hording extent but often times will use the miles (unlike a hoarder who just fills their basement with junk). Takes a lot of research and effort just to stay on top of everything. I have a friend who went from nothing to almost 1 million miles in 18 months. This is also not me.

3. Controlled Value seeker - Only signs up for cards when they are at good bonus levels but no more than 2-3 at a time. Once miles post then cancel the card and look for the next one to replace. This is me. Some that I have done and would recommend would be:
- British Airways Avios (75k if you can still get it was worth 7 R/T tickets on AA from ORD to BWI)
- American (wait for at least 60k option)
- S/W when the 50k comes around. Double up with both versions and get the free companion pass (100k miles in a year)
- US airway (merging with AA soon, no min spend or annual fee)