Which Groupset?

I have Chorus 10sp and like it very much.

Good:

• Thumb-shifters. Each control on the ergopower only does one thing. So the engagement is positive and solid. I never much cared for the sideways movement of STI levers when braking. They're easy to reach from the drops.
  
• Being able to shift a pile of gears at once.
  
• Front derailleur trim. Works perfectly. Maybe the others do too, but.
  
• 13-28 cassettes for fat bastards.
  
• Shifting is positive and quick.
  
  

Bad:

• Wheel compatibility and the lack thereof
  
• Campag chains are horrid. Straight to KMC.
  
• Doesn't like being gunged up - the shifting becomes a bit sticky
  
• Skeleton brakes look great but are a pain to clean
  
  

Interesting:
Zinn reckons that you can drive SRAM derailleurs/cassettes with 10sp Ergopowers as the amount of cable pull is similar. I might give this a go.