Your friend is correct- +4 skills is very useful. However, I wouldn’t compromise my Critical damage for it- instead I would compromise my defense- specially that you are already focusing on offence (two hand weapon as also you are Axe user).
What do I mean exactly? I assume you using Terra Helmet
You see a terra helmet (Arm:9, sword fighting +2, club fighting +2, axe fighting +2, protection physical +5%, earth +5%).
Imbuements: (Empty Slot).
It can only be wielded properly by knights of level 230 or higher.
It weighs 31.00 oz.
Instead you can use Dwarven helmet with extra Imbuement slot where you can actually put Powerful Chop
You see a dwarven helmet (Arm:6, protection physical +2%).
Imbuements: (Empty Slot, Empty Slot).
It weighs 42.00 oz.
Alternative is Demon Helmet, but is on second option only - please read reasons on following : https://www.tibiaqa.com/1061/dwarven-helmet-or-demon-helmet-what-is-better?show=1061#q1061
Or if you have extra cash - I advise you to either upgrade to
Cobra Hood You see a cobra hood (Arm:9, sword fighting +1, club fighting +1, axe fighting +1, protection physical +5%).
Imbuements: (Empty Slot, Empty Slot).
It can only be wielded properly by knights of level 270 or higher.
It weighs 27.00 oz.
Or
You see a falcon coif (Arm:10, distance fighting +2, shielding +2, protection physical +3%, fire +10%).
Imbuements: (Empty Slot, Empty Slot).
It can only be wielded properly by knights and paladins of level 300 or higher.
It weighs 28.00 oz.