Nice Marshalls ^^Slant probably projects to ear level better but I love the look and deep tone of straight cabs. The Bogner straights have the slightly angled baffle. Best of both worlds?
I think it really depends on the speakers in the cab. If they are beamy then straight works better for me. I prefer the look of a straight cab but can "hear" the advantage of the slant when playing in a band, like someone above said you can hear yourself a bit better