Going to get a new phone with Sprint, opinions on which one to get?

They come out with new phones like crazy so I don't know what the best one out there is. I thought the evo 3d would be cool but I've read reviews that say it isn't so great. This will be a 2nd phone I'll be using. I like my blackberry so much I can't part with it, yet I want to keep up with new technology. Any suggestions on what to get? I'm going to use it a lot for internet and apps, those will be the main things. And while we are at it, since I'm going to have two phones is there a better plan than others when it comes to having two phones? Or should I have two separate accounts? Price on everything doesn't matter. I have unlimited everything on my blackberry, plan on getting it for the new phone. Thanks for your help!