I can't choose between the Smith Fuse, Dragon DX, Scott Alias and Spy Zed. Which one of these would fit best medium size face? Which has the smallest and largest frame? Could you compare them? I also plan to buy a helmet, so they should work with helmet of size M/L.
Thanks

Tech Specs:

Frame:

Urethane 

Lens:

Carbonic-X lens with TLT Optics 

Strap:

Elastic 

Helmet Compatible:

Yes 

Eyeglass Compatible:

No 

Ventilation:

Regulator adjustable lens ventilation 

Face Size:

Medium 

Recommended Use:

Skiing, snowboarding 

Manufacturer Warranty:

Lifetime 

Country of Origin:

China