It seems to go in trends....."behaviorals" are big right now. I've taken the Wonderlic several times (my high score with no wrong answers got me one job), and I've had lots of "gotcha" brain-teasery type questions......"how many golf balls fit into a 747", etc. )
The strangest interview I've had recently was an "Apprentice-style" round table with about 10 candidates - I was the only female.
It was a mix of a few older guys who probably had a ton of experience but were beaten down by being downsized, young, inexperienced guys, a couple of uber-competitive blowhards and me. Questions were directed either to a specific person or to all.
The owner of this company swore that this method got him great hires. I didn't get the job (wouldn't have wanted it after that session), but I would bet he took the biggest blowhard,(the guy was a butt kissing jerk) and it probably didn't work out that well.