Like Agilent scopes better. At my school, the physics department has two different models of Tektronix scopes, the only difference being that one model can save results to a usb drive. The only problem I've had with them is that they sometimes format the damn usb drive, so you sometimes have to continually swap it out and download the data to a computer, which kind of defeats the purpose (a bit). So, to minimize the problem of people's usb drives and data getting eaten, the lab profs decided to get their own usb drives, which promptly resulted in a few of the usb drives rapidly evolving legs and running out of the room (they were stolen for those of you with no sense of humor). Both models of Tektronix scopes will lie to you if you hit the autoset button.

The engineering department at my school has Agilent scopes, and while they are larger (though they aren't stationary), they have a slightly more intuitive interface. They also don't format usb drives willy nilly without warning you and making sure you know whats going on. They autocalibrate their own probes, and they have storage space for the manual and probes in a compartment on top. Their autoset buttons are better than the Tektronix scopes, but still ended up giving me garbage settings on a few signals. I do vaguely remember somebody having to learn to use the interface and having a little trouble with it, but in a class of 18, that was probably not statistically significant.

My impression was that the Agilent folks had to use their own instruments, which gave them the incentive to go that extra tweak in UI improvement. They also had a spinning wheel for when the drive was being accessed, similar to the Apple beachball. Which looked cool even if it didn't serve a useful purpose.

Disclaimer: I have a few friends that work at Agilent, and love it. I had tried to get a job at Agilent for the summer, but was turned down. I even baked them a cake.