Chase Freedom Platinum (watch Visa siggy will not report the credit limit, only the high balance; plus Experian does not count this as an "open"-type credit acct, which dings my score b/c util). I've been very happy with this card. It is a pif, even the best APR is quite high.
A good CU like: Penfed usually has great limits and a card with 5% CB on gas, 1.25% other, credited monthly.
Ime, Discover has not been forthcoming with higher CLs. Don't get me started on Cap1 !!