Have you looked at any of the BLU phones? I picked up one (the Studio Mini LTE) after a customer was raving about his and I have to say I'm VERY happy it it. Its a quad core with a GB of RAM, 4GB storage with a MicroSD slot, gets great battery life, easy to root, just a real sweetheart of a phone.
The nice thing is they have a ton to choose from so you can just pick the features and price point you want. Want Windows instead of Android? They got that. More storage? Octacore? yep. Hell they even have a $60 entry smartphone and a $20 dumbphone for those that don't want a lot of bells and whistles. The only downside is since they are a relatively new company there isn't any mods that I have been able to find yet, but considering its low price and easy of rooting I have no doubt they'll be coming. All in all I'm quite happy with my BLU...You're my boy BLU!