Myrtle Beach is a great place to visit. There's a ton of nightlife and if you go when it's a little warmer, the beach is GREAT (just watch out for jellyfish)... For Spring Break I have found that Myrtle Beach is a little slower than some of the larger Spring Break destinations.

All in all, if you still want to have a good time and avoid the huge crowds of people, Myrtle Beach would be the best choice (in my opinion). I love visiting Myrtle Beach (usually go there 3-4 times a year and am never disappointed).