[Jumpy]

while we're at it, by the way;

Make agility effect /pursue while mcap effects /flee.

Agility to catch your opponent, mcap to have the durability and willpower to escape them.

Make it so that Agi isn't easily the best choice 100% of the time.

that'd just make mcap the best stat by a large margain, though.
you can avoid any fight by being tanky.
you have the most combat effectiveness.
you scale harder the more you invest.
and as a bonus, if you pick up fomorian you can press 1 button to nullify 2/3rd of agility's benefits.

with the crit damage nerf and the softcap put on agility the more you stack those numbers higher, the better mcap becomes. talking about the math that goes along with it to determine pure effectiveness is really boring, but in short mcap is more effective at 250 than agility uncontested on its own; when including auras you have a sweet spot where agility and mcap pass eachother and said sweetspot starts at 0 (which actually surprised me but in retrospect makes sense) and goes all the way up to 210. bla bla bla this is unimportant

tl;dr as it stands mcap is more effective in battle unless you're in a very precise spot, though that's debatable and other variables such a fomorian who have no opposite come into play.

mcap is better for fighting
agility merely feels better and allows for pursue/flee