btw, on the csp v csr, the bonus is the same, you get x1.5 redemption on travel with csr v only x1.25 on the csp, but the annual fee is 450 -300 = 150 for the csr vs $0 (first year) for the csp. so you just have to pencil out what makes sense for you (the bonus alone, redeemed as ur travel is $125 more valuable with a csr).
if you travel a lot or eat at restaurants a lot the csr might be better. but still only if you're going to redeem as ur travel.