Best stationary bike for cardio?

[Paramount]

Can anyone reccomend a good stationary bike for high intensity cardio training?

 

[Noodles03]

Air dyne bike.

 

[Thorpedo28]

Wattbike....used by British cycling as well as England rugby for conditioning...an utterly disgusting bit of cardio equipment

 

[selfcritical]

Anything with braked resistance and a wattage meter