@Liliki
I've never had trouble sending pictures to iPhone users from my Android phones, but they send at lower resolution/higher compression.
Word on the street is that Apple is finally going to start supporting RCS messaging, which should partially alleviate this problem.
@voltronic I'm currently in an area with poor connection but I can still send any pic I want to my friends who are not on Apple. I left Apple a couple of times, once after the ios7 debacle but then I got back on, and then after moving to a rural area because Apple couldn't cut it I had to drive miles to jump onto store wifi just to update. Switched to Android for good. But now I really loathe Apple.