Should I trade my mogul for the MOTO Q 9C, TREO 755 OR A new Mogul?

[bigberto]

My first mogul phone ran good when i purchased it and then after a month or so the screen stopped flippin when i wood open my phone and ther were many other problems, so they they sent me another refurbished phone and still there are problems with the text screen and and buttons freezing up or screen not workin and i restart at least twice aday.
so sprint offered me the moto q 9c, treo 755 or a new mogul instead of refurbished.

So im jus basically askin can i get some opinions about phones the alternative i like is the moto q 9c but i jus need some info if anyone could offer advice on what phone to pick or what they would do