Leica all the way... I have a Bushnelland my father has a Leica, although you wouldn't think that if you knew us, just because I always snatch it before he has a chance to take it. My buddy just bought a Leupold RXIII and came over to compare the 2. He now has 1 up for sale. I'm glad he came over because I was going to purchase that particular model because I am a diehard bowhunter and liked its feature but the optics are nothing like the Leicas. The only other 1 I would recommend (if you have spare cash lying around) would be the Swarovski.
My dad finally got tired of me taking his rangefinder, and bought me Leica LRF 700 PM at Cabelas. They are on sale now through the 15th of Jan. for 350....... And the optics are the same as the 900....