I can't work out the difference with the first 4 :/ I mean I can see they are different, they are different colors and have different pattern, and one and 3 have a see-through part whereas 2 and 4 don't..
Is it maybe the materials? one looks like a softer material than 3
I can't say how much I despise full cups. Oh my god I f***ing HATE them. Your boobs always just droop around and act all shapeless and saggy. At least mine do. Seriously, my t*ts are perky yet the second I put on a full cup they look all flat and droopy. I hate it. And that's the only one. Plunging, balconette, all those look fine on me, look great. But the second you get that full cup. Christ.
ANYWHO, I like push ups because they're really comfortable and offer good support and a pleasing look. Generally, though, I like all styles that don't have obtrusive amounts of fabric.
It kinda depends on the situation, like going on a date vs lounging around the house, going to school, etc. ha ha nevermind, forget the lounging around the house, that is an automatic no bra ;) I'm voluptuous and underwire drives me nuts but I'd have to go for the balconette as my all around favorite.