I'm planning on purchasing one of these in the very near future. I was wondering from those that have had experience with more than one brand/manufacturer, what your preference is.

Thanks

I prefer the Mustang.  It's much more comfortable when worn for any length of time.

West Marine has their regular $200 SOSpenders style PFD on sale for $140! I bought one Saturday. It has 34 pounds of floatation and is either automatic or manually inflatable. I thought it was a great deal.

I bought the Sospenders Long model at Cabelas during the winter for about $150.  I've worn it twice and it's very comfortable.  I looked at the Guardian series, but felt like it might be a tight fit for larger frames.  I didn't think they were as comfortable as the Sospenders.