I've read some stuff about high school of the dead.. lots of people say it's really confusing and the main character changes his personality drastically. I never planned to watch it anyway because I'm not really into awkward stuff.
I keep my opinion about bakuman, it's a really great anime if you want to chill, since everything is about real life. It's even better if you're into manga and stuff, since it's about 2 mangakas.
I'll keep watching beelzebub because i'm almost finishing bakuman. so far i've read the anime is incomplete but everyone says it's awesome and one of the best comedy animes. I've also read the story continues in the manga and I think it hasn't ended yet.