I like ones that have great rewards that help with travel, etc.
This is a new line from Discover and looks great!
• 1 Mile on every $1 you spend – Plus flexible redemption options like travel credits, merchandise, gift cards or cash
• 0% intro APR on purchases and balance transfers for 6 months, then the variable standard purchase APR of 10.99% – 20.99%*
• No restrictions on travel–fly on any airline, book any hotel or car, with no blackout dates
• Travel benefits include secondary collision damage insurance when you rent a car with your Miles by Discover card
• Discover is ranked #1 in customer loyalty–16 years in a row! (2012 Brand Keys Customer Loyalty Engagement Index report)
• Great rewards with no annual fee, no rewards redemption fee, and no additional card fee