Yeah, I've watched all of them :P, Incredible multitasking skills allow me to play games and watch anime at the same time... I once played two games at the same time but I'm nowhere near Keima's level yet ;)

Planet With is actually quite good in several areas and you're right, most of my friends didn't watch it or don't plan on watching it, it's seriously underrated, I gave it it's 7.5 score because it's a relative score and it's got a ton of strong competitors but the show itself starts slowly and somewhat confusing but becomes more interesting as time passes, plus as you said, the Mechas are original and cool! I didn't think about TTGL until you mentioned it but I can certainly see some common points yes, specially on the final episodes 5 years later when they're adults.

I went against popular opinion on Angels of Death... most sites gave it a good review and several friends of mine and video reviews gave it good scores but honestly, in an objective way it just doesn't make it. According to the tags I had to compare it with Higurashi no Naku koro ni and it doesn't even reach the heel of it.

I honestly tried to avoid spoilers with Island because as you probably remember the starting episodes aren't exactly good, I think I was bored out of my skull for the first 4 or 5 episodes and was watching it because, meh, I hadn't anything else to watch. Then about episode 6 they start to pick up the slack and start connecting the dots about the legend of the island, about Setsuna and Rinne, about how Setsuna came from the future and so forth... the fact that they change the opening song at episode 8 in a 12-episodes anime probably meant a lot to me too, these small details can really mean a lot.

BTW, I managed to get Nichijou and I'm watching it, can't say it's the most funny anime I've seen in my life but it's certainly funny. Right from episode 0 it's joke after joke so thanks for the rec. Now I need to get To aru Majutsu Index to prepare myself for season 3.