So, two of a buttload of feats for
+2 to hit, +5 damage on a
lot of attacks (and, if you cheese it up enough, all of them) is unexciting. But,
+1 to hit, +Con mod damage, at the opportunity cost of it being your PP, has "tremendous upsides"?
I'm sorry, I don't follow.
Uh. No. I said "I wasn't sure if I would go Lyrander or Daggermaster with this guy." Both have their advantages. Lyrander has more powers that are Thunder, Daggermaster has that critical thing. Either way, getting 19-20 range on crits in epic isn't tough.
But, yes, I claim that -any- PP that says '+1 to hit with all your powers, +Attribute mod to damage with all your powers' has tremendous upside. And the powers it has aren't terrible either. It's a Paragon Path that makes -every single thing your character does better.- That's not a 'waste of a Paragon Path.' That's called a 'perfect fit.' Daggermaster would be a 'waste' as it only has one path feature that fits a couple feats in the build, yet that path feature is so good it's worthy of consideration; the rest of Daggermaster is -subpar- for a storm sorcerer.
Of course, you're comparing the extensive network of feats cold gives you to work with, with a single PP class feature. It's a false comparison, and ignores the rest of the point, which is that thunder/lightning has so much feat support that cold gets left in the dust.
This is the list of bonuses thunder/lightning build gets you:
+Tier damage when bloodied-Heroic tier
+Tier damage after hitting-Heroic tier
+1 to hit after hitting-Heroic tier
Crits do damage to secondary target-Paragon tier
+2 to a defense after attacking-Paragon tier
AoEs are increased in size-Paragon tier
Crits automatically do maximum damage-Epic tier.
-That- is what you should be comparing to '+2 hit +5 damage'. Not to mention many of thunder's attacks actually give you combat advantage inherently, thereby giving you that +2 to hit on top of the rest of its upside. A frost build doesn't really -work- as a damage build until Paragon. A thunder build, on the other hand, starts its magic in heroic... so a third of your frost striker's game is sub par, where as thunder is game through -all- tiers.
Also, what does frost have to compete with 'Automatically maximize all criticals?' Lastly, what does Frost do when it misses? It goes down to subpar for a round until it can get that hit in. Storm does lose a -bit- but it's not as much, and it can still rely on its other advantages.