When it comes to deciding between the Yamaha R3 and the Aprilia RS 660, it really comes down to personal preference. The Aprilia RS 660 has a higher top speed and better engine performance, but the Yamaha R3 has better fuel efficiency and a lower price point. Both bikes offer a great riding experience and are sure to put a smile on the face of any rider. Ultimately, it comes down to what you prioritize most in a bike and which design appeals to you the most.