the kaplan tests are excellent, though for me the angle ranking an hole punching were harder on the real thing both times I took it. However the key to performing well on the PAT is to take as many practice tests as possible (I answered at least a couple thousand pat practice questions to get my scores up to the 24-27 level, then got a 24 on the real thing), so I say just take every test you can get your hands on (though you might be careful with Barron's, since their test answers tend to be blatantly incorrect).