I recently passed BEC using Wiley, but I also used Gleim's test bank as a supplement. I honestly think Gleim's test bank helped quite a bit. In my opinion, some of Gleim's questions were a bit more difficult, but their explanations were much better in helping me understand certain concepts. I also paid the additional shipping & handling to have the hard copy of the questions mailed to me, which included outlines for each study unit. Some of Gleim's outlines explained certain topics better than Wiley; on the flip side, I felt Wiley explained other topics better. I called Gleim, and the sales rep gave me a nice discount for the entire test bank. I think the regular price is $999 +tax & shipping, and I was able to get the entire test bank for $667 (including tax and shipping).
Quite a few people speak highly of Ninja, but I went the route of Gleim because my job paid for it – they weren't willing to pay for a monthly subscription, but paid a one-time lump sum for Gleim.
One last thing that I almost forgot about. I went through all of the LIVE review sessions that came with Wiley. You probably receive emails when they are having a live course, but they upload the recordings for later viewing. I think reviewing those recordings helped me tremendously. In many areas, the professors provided some great tips and tricks for some of the difficult problems/subjects. I honestly felt like those tips and tricks should have been incorporated into the regular study text/videos.
I hope this information helps!
AUD - 81
BEC - 83
FAR - 75
REG - 75
Great things never come from comfort zones - Roy T. Bennett