The Pitch is lower spec'd ... which means additional $$s for upgrades.
The Ironhorse is well spec'd and currently $250 more
The Stumpy is spec'd nicely ... although propriety shock (what happens with Spez stuff now they come direct via the LBS ... ) I think it would be a pain particularly 2nd hand. and 2nd hand carbon ... I'm a sceptic, but I'm sure others will rave.
I'm not a Commencal fan, but I'm certain the commencal owners reading will voice their approval for their bike. (better spec then the pitch I guess)
So ... I reckon best value is prolly the Ironhorse ... just ... with a bit of haggling, over the Stumpy
Proprietary shock, 2nd hand carbon are too big a negative IMO ... also 2 years older ... if you can over come this, then the Stumpy with a haggle,
Good Luck