What phone should i upgrade to for sprint?

My upgrade is coming up in April and i was wondering what phone i should get. I am a very avid texter. I always am texting. Slide or Flip, doenst matter. I just want the full QWERTY keyboard. Something durable. Any suggestions?

Black Lg Lotus

i have the lg rumor and i like it a lot.

my boyfriend has the sumsung instinct and he likes his phone. it does have a lot of cool features

*Lg Lotus

*Palm Pre

*Blackberry Curve

*Instinct

*Samsung Rant

*LG Rumor