It might be my favorite school of magic. Its useful for pretty much every type of character, save maybe a few. It has some of the most awesome perks. Recovery and respite are incredibly useful and I love avoid death, for so long I thought it really wasn't that great, and didn't really bother with it, but once I finally decided to get it I realized how great it really is, saved me plenty of times on my most recent character, and I only have ever gotten it on this one and my last character, and it fit both builds perfectly, though it probably isn't as useful to others. I think guardian circle may be my favorite master spell and then there is bane of the undead.... pop a fortify restoration potion and there isn't an undead creature in the game who isn't sent running for the hills, and a lot of them will just turn to ash the moment it hits them. Guardian Circle has such synergy with Magic Absorption, I never use the Atronach Standing Stone, but even with just the perk its great having some of your magicka intermittently filled up.
and thats not even touching on Necromage....
Anyway, anyone else think that restoration is more than just a valid school of magic?