honestly, I think there are more pressing issues in EMS than what trauma sheers to get, and a comparison is pretty much as waste as it's often a highly personal decision.
I put the topic on par with what lights should I get for my POV, what is the best equipment to carry on my batbelt, and what stethoscope should a new emt purchase. Yes, you can spend money on the stuff (and I have on all three), but in the grand scheme of things, your money can be better spent elsewhere. Not only that, much of it boils down to their individual preference, so I might love something, but it won't work for you.
EMSWorld has some great articles, and brings up some good topics, ones that are relevant to EMS and applicable to newbies in EMS (and yes, I do believe that all their authors should be compensated for their work). And then they post a comparison on the best trauma sheers... The content might be valid, but you can't compare it to an article on
patient care,
new mnemonics for paramedics,
special event EMS, or
how stress is killing EMS careers. And yes, the trauma sheers comparison was listed in their tops news when I first saw it.
I regularly check out EMSWorld.com (and the actual magazine), JEMS.com EMS1.com, and EMSDirector (the actual magazine), to see what the latest trends are and see relevant discussions to EMS (as well as see what is on here). Many of the articles I find beneficial; a comparison of trauma sheers, by an author and his daughter, are much less useful.
If you do insist on spending your money on trauma sheers, go to an EMS conference, and visit their expo area;. you will find vendors trying to sell you anything and everything, including trauma sheers. This will also let you actually see how things feel in your hands, and they
might even offer it as a lower than listed price.