I've batoned well beyond what I should have with my 3 many times. Full length of the blade in hardwood through knots batoning from the handle side, very stupid thing for me to have done repeatedly but the knife never failed in anyway, it still is my extremely hard use knife. I wouldn't pry a door open with it while I might try that with a 4, but batoning? anytime! A 3 is a very sturdy knife that is still able to slice like a cutting tool aught to be able to. I think most will agree that if you ignore the cost difference the ESEE version is much better.
Even considering the cost difference the ESEE 3 is still a better deal because of the warranty, better fit, better heat treat, and extra handle length.