Harmony Rose gets a slight edge for being a bit sluttier and all natural. If Tory Lane had her original chest, I might go with her. Isn't there a both option? I am pretty sure that they are long time friends and have appeared in a bunch of scenes together
I like Tory Lane a little more, she just looks sluttier (if that's a word) kinda looks like a chick I work with (Tory is way hotter, but there is quite a resemblance). They work good together:
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Tory lane's got a bit of a weird voice when she's at it, she can sound like a dog with something stuck in her throat. Purely on that basis, I go Harmony although the volume can be turned off. Volume off it's too close to call.