Ok mainly visage is for the healing cause your not always in fight and you might not always wanna go straight to town to heal you might have the extra shroom or 2 to place so its always goodto have that healing with it, but at the same time you arent 100% chance to gett that far into that far into the game if you end it or you lose depending on the game and your team.

Uber, you're my homeboy and everything but jesus christ that first build is insanely squishy.

Also Spirit Visage on second build makes no sense to me whatsoever, there's no extra healing you're going to be getting from anything since you don't have any spell vamp or natural vamp for that matter. It just seems like it's there. Cool if it's for CDR but you got Nashor's Tooth, Soul Shroud, and Frozen Heart for that. Even if you don't hit cap after that you got Masteries. Then the AP seems very late, RoA I wouldn't recommend after so many items so late in the game, I think it'd be much more recommended if you were to have the Rylai's before the RoA and replace the RoA with maybe Abyssal Scepter, etc.

Over All i must say AD is better for your team if you fail cause you cna change games easy with AD, CDR is harder due to you need to focus shrroom placements.

Just depends on your situations, sometimes i foundit does better for shorter games

I would replace Youmuu's with Infinity Edge for better overall damage.