Torch has much higher utility - he's also Coldsnap immune, reverses healing, Power Stings the opponent, and can counter Miss. Then there the fact he basically makes an entire class of champions redundant, on defense.However, Sunspot is a really decent champion, and his Ability to Perfect Block makes him a really good option as a 'lane-clearer'. And if you've "loved him and wanted him for so long", why wouldn't you take him up?They're in different classes, so even if Torch is 'better', they aren't really in competition for resources, so there's really no reason not to take them both up.