I do it before i lift for a few reasons. Im burning weight for one. Also if i say im doing it after i lift im way to lazy and dont lol. Also for some reason when i do cardio before a workout it gets my blood going and stuff so i just get more pumped to lift i dunno. I also feel alot looser and nicer and warmed up etc. I think its mostly on opinion though.

Also want to add im not a body builder im going for muscle endurance and what not. I am currently doing high rep sets with low rests.