I ride both, also. I don't show or anything, I just like both saddles for different reasons. If I'm going on a long trail ride, I prefer the comfort and security of the western saddle, all the way. If I'm just working my horse in the arena, I like riding english. It just depends on what I'm doing or what I feel like on any given day. I want to start taking dressage lessons soon, so I'll be spending more time in my english saddle, but I'll never quit riding western just because my focus is changing.
I have my horse so used to both, he is such a smart boy. He puts his fancy pants on when we ride with the english saddle, he becomes very concentrated and eager. Then the next time I put the western saddle on him, he gets this great low headset and does a perfect slow jog like he's been in WP his whole life.