I'd be incredibly pleased with the addition of Lara Croft and Rayman. Ethan Mars I'm indifferent about but got no problems with his addition. On the other hand, I'd be disappointed that Crash, Spyro, Solid Snake/Big Boss, a FF rep and Wander didn't make it in.
Overall, I'd be very happy. Lara Croft is one of the big 5 so her addition is definitely welcomed. Rayman is a popular character with games on every PS home console.