What should i do about this?

well im in abit of a muddle and i need help , well theres 2 lads who i really like and i dont know which to go for. one of them is called kyle and we get along really well and we used to go out for 5 months and he used to beat me up so we ended it but he isnt like that no more and we tell each other everything and he always has been there for me and he always helps me sort my problems out and hes just a nice lad but then theres this lad called callum whos such a lovely lad and really likes me and hes very caring but i dont know what to do because i dont know who to choose .so who should i go for ?