Rate the Traffic Trading Scripts!

[Barbarian]

I'm looking for 'best' traffic trading script available. I've looked at UCJ-IV, Scorpion 2, X-3 and CJPro 2. Can anyone offer any advice on:
1. their experiences with any of these scripts;
2. are there any other recommended scripts;
3. what script they consider the best and why.

[diesel]

If you plan run TGP or trade site with content...better take UCJ.
If you plan run CJ(2 or regular) and want to save money but still get quality script..better take RB2..
If you want to see demo of rb2 shoot me.
icq: 15123215

diesel

[AzteK]

I think Scorpion 2.

[Wetlap]

tell me some idea why is scorpion better than UCJ?