I use an iPhone, but I just grabbed a Nexus 5 for my wife which is a really nice phone.
A great option for people looking to save money is a Moto g (
Motorola Moto G - Full phone specifications ) which is an amazing phone for under $200 (unlocked / contract free). It has dual sim cards, which often allows you to combine the cheapest data-only plan with the cheapest voice plan saving you $20+ per month, and is great for roaming too. Also the SD card allows you to swap in more storage as needed.