that's really a question to nowhere... let's start here: 1. How often do you play, how serious are you? beginner/ntermediate/advanced? 2. What style of player are you? (Aggressive smasher, net player ...) 3. Do you care much about durability or is it all about performance? 4. How much money do you want to spend? 5. do you like headlight, even, or head-heavy rackets? 6. do you like flexible, stiff or extra stiff rackets? 7. oval or iso? 8. wich rackets have you tried before? what did you like/dislike about them? 9 why do you need a new racket?
try them all out and see which one you like best and buy it. depends how you play, how strong you are, your level of play, list goes on and on. so the easiest way is to try them and see which one fits you.