I'm actually curious on why there are many posts and interests about the Chase sapphire versus Citi thankyou. I'd like to start off saying that I've had the Citi TY premier card since this summer. I've looked at both cards in detail... but for frequent fliers like myself, I not sure why would I ever use chase sapphire. I know there are immediate benefits with sapphire that you don't get with citi, eg, constant 7% bonus (citi has a 5 year accumulation that tops off at 5% I believe). lower annual fee and ability to transfer points; lastly, some might say better customer service. From my perspective the only positives I can gain from this card is the 7% bonus, and the lower annual fee. The main reason I stick with citi thankyou premier is the fact I get 1 flight points per mile each time I fly. These flight points get transferred by 1 to 1 TY points. Meaning, if I have 5000 flight points, and I earned 1000 TY points, then I'd have 2000 TY earned in total. In other words, frequent fliers like me will most likely earn 2 points per dollar everywhere. Compared this to chase sapphire preferred, I only get 2x on airfare purchases and dinning. In addition, both card allows you to buy revenue tickets at a discounted points than normal (I haven't used chase's travel reward site, but I was able to find flights that I want through citi's reward travel site). I've recently bought 2 one way tickets from SEA->PUJ for next may just bit over 50k points total on CO H booking class, pretty good I think. The last point I want to make the benefit of transferring points. I'm not sure why I want to do that when I can buy revenue tickets at a discount from the card's travel vendors? I would certain choose to use 25k points towards a revenue ticket than moving it over to UA and only able to redeem reward. So in conclusion, I think Citi TY premier wins by a long mile for frequent travelers. I'm just surprised that there isn't much talk on this card given the nature of this forum Let me know your thoughts!