10million drops to spend on getting the best bike on Zwift for general rides, climbs and TT efforts. My garage currently has the following:
Canyon Aero24
Canyon Ultimate
Pinarello F8
Spesh Tarmac
Spesh Venge
Trek Emonda
Zwift Concept
Zwift TT
Canyon SpeedMax CF SLX Disc
Best for what route and purpose? zwifterbikes.web.app is good for estimating lowest total time on a route, but not as useful for picking a bike/wheels combination that provides the most help when you need it in a race. Sometimes I use zwifterbikes.web.app to pick a bike based on a KOM, and then adjust it to be a little more appropriate for the rest of the route, if I think the KOM is where the selection will happen.
I would like to participate in the conversation. My personal preference for the best bike is the Zwift Concept Z1. Not only does it look great, but it’s also one of the fastest bikes available. However, as mentioned earlier, the choice depends on the route and the purpose of your ride.
That’s pretty much it. That’s about what your best choices are depending on the route. As others mentioned, zwifterbikes.web.app will give you the best choice of those for the route.