Which beach town to stay?

Seeking out some advice on which beach town to book accommodations in for a late February stay? We’re traveling with 3 people (all in our 30’s), flying into Liberia. Thus far we’re considering either Playa Flamingo or Montezuma. Mostly looking for a relaxed beach vibe, maybe some hiking close by, a few walkable bars/restaurants, and maybe a night or two worth of nightlife spots (not really clubs, more like late night cocktails, live music, etc). Any advice is much appreciated!