Hydra 8 with Python PC vs BPT 3.5 Signature Plus

Hi,

I currently have the Hydra 2 with a Python PC on loan and I'm very impress with what it can do to my system....I want to purchase either the Hydra 8 or the BPT 3.5 Signature Plus in the near future...

Have anyone compared the two?...Your insight and recommendation is greatly appreciated....

thanks
Long