It would be really cool if you posted these next to your old pedals. I need some wider platforms and want to see how these compare.
Ask and ye shall receive. Pedals, from left to right: Crank Brothers 5050XX, stock pedals from the GT Ruckus, Wellgo platforms from my STP


The angle of the picture makes the 5050s look smaller than they are. The GTs are by far the smallest. The Wellgos and the 5050s are fairly close; but the 5050s are flatter and have more material contacting the shoe so they feel bigger, at least to me.
I really like the 5050s based on the very brief ride up and down the block this afternoon. You're welcome to try them some time, or the Wellgos on the STP.