If you have no budget problem, you should definitely go for Yamaha YZF-R15. The R15 has a more responsive 150 cc engine than the fazer. It looks more aggressive and also more safe, as it has two disc brakes instead of one. It has 6 speed gearbox and the engine is liquid cooled. Performance and style, both goes more for the R15.

Quick Facts - Yamaha YZF-R15 V2.0 Streaking Cyan Special Edition