AP: batman can harm those who can harm him giving him an ap of 0.01892870000239006 tons, the mandalorian has a heavy blaster pistol thats 0.0164914 tons. giving bats a slight AP advantage.
Dura: as mentioned above bats is 0.01892870000239006 tons, the mandalorian took a hit from a heavy blaster rifle that should be around 0.0717017 tons. giving the mandalorian an almost 4X Dura advantage.
Speed: bats is supersonic+, the mandalorian has peak human travel speed and superhuman combat speed. batman blitzes, but this can and probably will be equalized so it doesnt really matter.
LF: batman is class 5, the mandalorian is peak human. giving batman a massive lifting strength advantage.
Stamina: batman is incredebly high, the mandalorian is peak human. bats has a significant stamina advantage.
Range: batman is standard melee higher with gadgets, the mandalorian is standard melee physically and with a knife but a little over 3 miles with certain weapons. the mandalorian has a range advantage.
Intel: bats is genius level and a master martial artist, the madalorian is highly skilled. i'd give this to bats.
Hax: batman has acrobatics. pressure points, analytical prediction, information analysis and stealth mastery (this isnt even going into his gadgets.), the mandalorian doesnt have anything that batman doesnt have.
i'll vote batman simply because he holds more advantages.