For putting, it really comes down to the feel of the disc in your hand and your plastic preference. Anodes are only available in premium plastic and Yetis are only available in baseline plastic, so that should make your decision easier. I used to putt with premium plastic discs a lot, which works fine for me when the conditions are good. I ended up switching to baseline putters just because when the conditions are lousy, they don't slip out of your hand and cost you strokes, and switching putters every time the weather is wet is a recipe for poor putting anyway.
So, all that said, if you prefer baseline plastic for putting, and you already know you like the Yeti feel, then go with a Yeti. If you'd rather try putting with premium plastic for a while and want a shiny new mold to try out, go with an Anode.