Potential bonuses for Shields?

A Unique 2 line 3rd or last visitor shild beats a 3 line warrior/thief/magician maple shield by 1%, if all bonuses are the main stat.

Visitor: 9% int, 6% int, 15% total

Maple: 6% int, 4% int, 4% int, 14% total

So visitor shields are pretty much better, hands down. Good thing I've got one for every class.

A 1% bonus is only worth about 2-2.5 weapon attack or magic attack (after BB). It's not a huge advantage. A 3 line shield is significantly better, though.