I've been lifting since High School and the best program that I've found is P90X. If you want to start, but you don't understand fitness and/or dieting, it is a great place to start.
If you get bored easily and have finished P90X, then move on to Cross Fit. You can easily substitute workout days that don't require equipment for days that do.
In HS we did a variant of Strong lifts, the core lifts are great if you want to bulk up, but if you just want to get strong and tone, I'd suggest finding something else. I don't like to do the Olympic lifts only. I know you get a lot of muscles from them but I think everyone needs other exercise too (running, pullups, swimming, biking, etc.)
It does depend on your goals. I know many people who do starting strength because they are primarily runners, swimmers, etc.
I'm doing a bit of everything now. Olympic lifts, a couple isolations, P90x, HIIT, running, biking, pull/push ups, and yoga (which I think is very important to overall fitness). I want to add swimming into that and attempt a tri.
If you only do Stronglifts or Starting Strength, you'll only accomplish what those programs are for, seems like a no brainer, but some people fail to realize this. Also, some people don't realize how much diet impacts all of these things.
If you get bored easily and have finished P90X, then move on to Cross Fit. You can easily substitute workout days that don't require equipment for days that do.
In HS we did a variant of Strong lifts, the core lifts are great if you want to bulk up, but if you just want to get strong and tone, I'd suggest finding something else. I don't like to do the Olympic lifts only. I know you get a lot of muscles from them but I think everyone needs other exercise too (running, pullups, swimming, biking, etc.)