I've been weightlifting for about a year and the entire time I've done generally the same routine. A lot of isolation lifts and not a lot of moving heavy weights. My routine was created by my dad (He's a pretty strong/big. Also, I'm only 17), but I don't like it all that much anymore and want to branch out to heavier weights and more compound lifts.
I was attracted towards 5x5 and it's the only other routine I've really read/heard about (never looked into 5/3/1). So, I decided to try 5x5 (StrongLifts) and realized there is more than one type of 5x5 routine (madcow, texas, SS??). Starting this low of weight kind of sucks, and the newest StrongLifts 5x5 book seemed like a lot of marketing. So, I'm a little less sure of this choice.