Run the EPI in 100 mm fork mode ( like you would have on either 100 mm equipped bike you're looking at) and it will turn much faster than at 120 or 140.
I suspect one of the reasons the new Epi has 140 mm of rear travel Vs the older ones with 130 mm,is because of people having problems turning it with a Talas fork in the 140 setting. ( My bud Tom is a good example)
Sag in the fork or shock can change cornering greatly. Try this, run 10-15 more psi in you shock than you usually do, with the 140 fork setting. Quicker turning will be the result.( along with a harsher ride)
Or, run 10 psi less in the fork, again you will see quicker turning.
Both of those changes will make the straight line at speed and steep stuff less stable though.
Narrower bars and or a lower stem will quicken up the steering as well.
* One's cornering style can also overcome common assumptions about bike geomentery.
I'd be willing to bet that there are some people on 6" travel bikes that corner as fast as just about anyone on a 4" travel bike with steeper angles.
Bottom line: Ride as many different bikes as possible, set up for you weight/fit and buy the one that does what is most important to you with the least amount of effort. ( Numbers, measurements are not everything)