[Which modpack is best?]

Out of the modpacks available in the technic pack, which one do you find to be best?

[Frequent freezes]

Title: Frequent freezes

Version: 3.1.2

OS: Lenovo Win7 PC

Java Version: 64 bit

Description of Problem:

Whenever I play multiplayer servers i can play for 10-15 minutes and then my screen freezes and I have to end it with task manager. Any way to fix this?

Error Messages:

Error Log: