1. I did not go to the prerelease, but i am a avid drafter on newnet(i am lord_Fril there). here are my observastion...

Plague Spores - This is sick. this is so sick it should be in a nut house. First it is removal and land desrutcion. I have personally won a few games just because i could destroy my oppenets plains, thus makeing not able to cast all of his sick legends.

Molimo, Maro-Sorcerer - i played a great deck with this. i had harrows and trail blazers. when his fattness hit the table, i won.

Trible Flames - Just plain great. I often to 3 or 4 damage with this.

Tek - I played this in the same deck with the harows and trailblazers. And in other decks i just put in 2 of each of lands i didnt have cards for, just for this and the ocasional global ruin.

The Attendents - With many of the critters of this set being 2/2s a 3/3 just dominates the feild. They also prodived the mana i needed to cast a few faties like Lotus Gardian and a few dragons.

Phyrexian Reeper - Just strong. With green being so dominate in this set, i would put this at 4th pick maybe 3rd.

The Apprenti(or is it apprenteses)- the best one has to be the Stormscape one. The ability to tap down a critter in responce to combat phase (step, whatever) or do "ping" an oppenent is great.

well, im tired of typing to ill get back to this later