It's catchy, dancey, with beautiful melodies but can still be emotional, deep and serious at the same time. It's a feeling no other genre can pull off. Just listen to this Donna Summer song, it's very catchy and makes you wanna dance but the lyrics are very personal and emotional.
Alternative in my opinion. Pop is great when it's well done (Lady Gaga, Madonna [pre 2000], Michael Jackson)... I love Disco too (ABBA, Donna Summer..)
No genre is ''better'' overall, since every genre has AMAZING artists and also has horrible ones with horrible songs and work... I mean I can say alternative pop or experimental electronic music but I know several bad artists so ...
alternative- rock like jagged little pill/ nevermind
disco like donna summer and abba
electronic- pop like early gaga
just great quality pop music like katy perry