Link has the best customs, i've bodied so many people with Custom Link it's crazy
I use:
Power Bow
Boomerang 2
Meteor Bombs
Whirling Leap
I can combo into bombs easier, plus they have a meteor effect so I don't have to risk my stock trying to spike. Also they have a shorter timer so they are pretty useful for protecting from rolls.
Power Bow gives me a long range kill move, nuff said.
Boomerang 2 is just like Tink's standard one, it saves me from combos on the second hit, or allows me to combo/bait easier knowing it's coming back.
Whirling Leap gives me a great recovery, no more ****ty tether or dying from coming this close to the ledge.