2.) Takara Kun to Amagi Kun. 1st on GagaOOlala, 2nd on Viki. Went because sometimes the dialogue didn't quite match my understanding of the character (or in one case, the scene overall). But I also came to notice that teases/insult and overall degree of politeness, i guess, was different. It was fun to see the minute differences.
Honestly, I tend to prefer viki over GagaOOlala in general, but tend to watch things on GagaOOlala first because the episodes are made available immediately, which works perfect for my night owl habits.