I'm moving into an apartment soon and I won't have internet for three months. I want some long anime that are good. Whatever genre.
HunterXHunter, the new one. Supposedly really good for a shounen. Haven't watched it yet though.
Legend of Galactic Heroes. Long and slow burning and old, but really one of a kind space-opera.
I think both series' have around 110 episodes
Oh well, I just made that sound really boring actually.
Legend of Galactic Heroes is really unique though, its actually hard to call it an anime because I wouldn't know anything comparable.
If you like detailed, intelligent stories about war and politics told from two opposing sides you'll like this one.
Also, the show is quotable as fuck and has space-prussians.
Full Metal Panic/Fumoffu/TSR for school romcom mecha action drama
Full Metal Alchemist Brotherhood for fantasy adventure
Jojo's Bizarre Adventure for bizarre yet manly action adventures
Blood+ for vampire horror action
Gintama for parodistic comedy
Great Teacher Onizuka for deliquent/school comedy
School Rumble for romantic/school comedy
Golgo13 for impossible killshot of the week
Legend of the Galactic Heroes for war and politics in space
Gundam's Universal Century in production order for war drama and a little bit of politics in space plus mecha action
Monster for slow burning mystery drama
It really is a great opportunity to make yourself familiar with Gundam as >>38857 suggested, unless you can't stand old ass shit that needs getting used to and has its ups and downs. Same for LOGH. Would help to know what genres you prefer. Assuming you're not picky, I'd give priority to Blood+ for being most consistently enjoyable in spite of running 50 episodes.
I loved Space Brothers. 99 episodes, and the manga is still ongoing.
It's got no cute moeblobs, is kind of slow at times and secretly it's one long NASA advert. Still, there's something about the way that it's presented which makes you feel for the main characters. They're two kids with a dream, and even as grown adults they've kept that dream. Following them through the milestones that help them get there is heartwarming as fuck.
Lupin the 3rd
If you want to watch it, watch it in this order:
Monogatari Series Second Season (2013)