Use HLE. Just switch to LLE when you got a crash. Make a save and then switch back to HLE. The game doesn't start with Dolphin 3.0? Strange. The official release is "perfect" for this game. I've never got real issues while playing
[color=#ff0000][color=#006600]i5 3570K @ 4.5GHz/GTX 660 Ti/RAM 4GB/Win7 x64[/color][/color]