AS Challenger mk 2 vs. Avid Diva 2 sp vs. Rega P9


After many hours of research i've narrowed down my next turntable to...
1-Acoustic Signature Challenger mk 2
2-Avid Diva 2 sp
3-Rega P9

Have heard the P9 mulitple times and was impressed. Frequency extension and bass slam appear to be a minor weakness with the P9. Have never heard the Diva 2 sp or any AS models. From what I have read the Avid/AS excel where the Rega P9 is deficient. I would appreciate any comments from current/previous owners or those that have had experience with these 3 turntables. FWIW i'm considering a Helius Scorpio 4 or OL Encounter tonearm on the Avid/AS, cartridge preference is a ZYX R100 for all 3.
dayglow
Thanks Vortrex, your comments are much appreciated. Just to make sure, it sounds like at one point you went from an Amadeus > Amadeus GTA ?
If so, I assume all else including cartridge remained the same.
Dayglow-If you spend around 5K on the TT setup, what will you do for a phono stage. You haven't mentioned anything about owning one.
Dayglow- Sounds to me like your in nice shape. The H-1200, although no longer in production, is supposed to be a nice piece. I believe Allnic is coming out with a new entry level unit. Hopefully, you will soon have an opportunity to hear one or more of these TT setups.
Update-I purchased a used Rega P9 and received it today. Need to replace the mat and standard feet/belts. There are conflicting viewpoints whether a clamp or record weight is needed on a P9, any owners have an opinion?