I'm using Hangouts. The only media I really text to people is pictures and I've always just sent 1 pic per message because of how much the pics are compressed if you send multiple pics per text. I like how simple and quick it is, and it does what I need it to. Sure I can't theme it and make it look all colourful, but my entire phone has a minimalist, simple, but effective look / setup, so it works for me.