Hello, please what is the best PTC/PTR/PTS etc. script out there?

Some people says ClixScript some other BuxHost, PTC Evo.. There are also other PTC scripts:

Buxhost.
Aurora MRV
Nextgen
Clixscript(buxtrio)
Zeus
CashCrusader (old ptr script)

What do you think? I mean in terms of support, updates, price, features, security..?