Kaladin being able to fly better than Vin would depend on the site of their fight and how much metal is around them, and now that I think about it, how much Stormlight Kaladin has. Assuming that they both have enough of their "element" to be at peak power, Kaladin might be able to fly better, but Vin is more nimble and faster. Kaladin's Sylblade only matters if he can score a hit. Meanwhile, Vin can attack from further away by shooting coins. The only problem then would be how much Stormlight Kaladin has available, unless Vin scores a shot that would kill him immediately. If it's limited, we have a problem, but if it's constantly renewable for the sake of the fight, Kal would definitely win, I agree, @Wildernesboy