Actually I think glacial spike would be best, considering the damage and that it freezes enemies.

Glacial Spike, lv 20 (1 point in Ice Bolt, 1 point in Ice Blast)

247 - 266
Freeze for 4.2 sec
19.6 mana

Glacial Spike, lv 26 (7 points in I. Bolt, I. Blast) <-- I think the +skills from items won't give damage bonus....but not too sure at this point.

395 - 421
Freeze for 5 second
22.5 mana

Frozen Orb lv 26 (7 points in I. Bolt)
408-428
Cold Length 33 second.
33 mana

Try Blizzard, I find that to be best for multiple enemies. For single enemies, I'd go with Ice Blast, although I'm not sure if it does any good at low levels. I can tell you this much though, that Frozen Orb does suck in hell mode. You can try it out for yourself if you don't believe me. One possible reason might be that it has horrible casting delay, and Glacial Spike has none.

For fire tree, Fireball is now number one, with synergies and what not. It has no cast delay, a bit of splash, and can do insane legit damage.

Blizzard is fun to use. Haven't try it yet on beta, is it 100% chance to hit now? In the past it misses sometimes.

Not hell...:( Hell is a little too hard now for legit sorc. I did okay with a level 37 Orb, well, need to teleport around very often, but I killed them...after a while. Quite a while.

No, Blizzard doesn't have 100% chance to hit, but when it does, it can pack quite the punch compared to Frozen Orb. On a hacked char, skills all at 99, in 8 player game, it takes the High Council in the Travinical out in 2-3 Blizzards, compared to.... a lot of Frozen Orbs. Granted, it is doing 20,000 a shard and a few rain down, but for the supposed 3,000 a shard on orb, it does much better. I don't know why Frozen Orb doesn't do nearly as much as it should, but Blizzard, in my opinion, kicks much more ass than orb in 1.10.

probably cause Blizzard likes the spell cause it has their name

this sounds like something that will emerge in Diablo3

when d3 comes out... im gonna fricken die...

Imma like... Molest the store clerk while he/she's ringing it up cause I'll wanna play it so bad

I'll like... have a laptop and everything.... I'll buy it install it and play it and die from the 5w337 1337n355

Just a comment:
Lvl 38 Orb + Ice Bolt = 848-886 Dmg.
Omg huge ass bonus... 1 orb on ama withouth absorb = owned.
They made it too strong. Oh and Cold Mastery can reach over 100% now.

So Senesia your wrong that Orb aint improved.

I said it doesn't have as much improvement comparing to others. Glacial Spike has bonus from 3 skills.

Many skills that wasnt used much have been improved yes. But generaly they suck.

I noticed a great improvement of drops (from chest), at least in quantity. In Maggot lair, I got 8 magic and 9 misc items from 1 chest, and about 6 magics in another one...

K_A idea was implemented in Ragnarok online and it turned out quiet well. Anyway i dont mind it, with or without K_A's idea.

Yes, I got the idea from Ragnarok Online.