Last year, Team 228 used WPILib, which is the back-end behind EasyC to do all of our programming for our FRC robot. While we used MPLAB as the primary editor to write our code, you can also use the built-in text editor in EasyC PRO or use Eclipse.
What we really loved about it is the speed at which you can write code, and how quickly we could get very sophisticated code running on our robot. We had closed loop feedback for everything on our robot, with PID control on our elevator and wrist. We used an accelerometer, two gyros, two encoders, and an IR range sensor.
Here's a video of our "drive-by" autonomous from last year:
http://youtube.com/watch?v=KR6daSCFjSM
I support EasyC and WPILib, because I would much rather see teams tackling more advanced control applications (like closed-loop (sensor) feedback), rather than "just getting their robot to work".
But of course, if you are familiar with programming in C, and you can write everything you need there, then by all means, go ahead and "hardcode" everything.