Literally this. I was "wowed" by the customizing options of android when I changed to my LG G2. But when that wow factor went out, I ended up with a phone crashing often. Going to iPhone 6 when it releases. I just need something that works well, feels well, and that I don't need to replace in several years.
I would blame LG's poor android UI for the crashing. My Moto X never crashes. It doesn't lag either, especially with the ART compiler turned on.