There is so much more small nuances and dynamics in the T5...
i personally think Yamaha blows a whistle more then the rest where it comes to brass, winds and woods..

What i think you meant to say, is that you personally like the soundcharcteristic of the Roland better, which is a personal thing..

The genos can even improve the sound of the tyros, as there is more dsp... you could set up a little distortion, to mimic a bit of growl.. if you set the distortion to be only active above veloities of 80 and becomming even more audible over vellocity of 110 then you will archive much of the sound you prefer on the Roland..