My vote would always go Icom.
I had a Yaesu once. bought it on the fact its advertised as "rugged". I'm a big guy, and things like scanners tend to break around me.
The Yaesu got knocked off something 3ft from the ground, where it landed onto carpet... the VFO/dial knob sheared off... This is a VR500 by the way.
I've had an Icom R2 for the past 4 years now. That's been with me to Riots, the ocean, airshows, dropped into a toilet (clean!), dropped/thrown onto concrete, and generally abused. The only thing I had problems with was the SMA socket solder joint came apart - a dab of the soldering iron fixed that (don't attach an SMA to BNC adaptor and use a long antenna).
My money will always go to Icom for sheer build quality - ok they make receivers and not scanners, but there you go.