Personally dont find the edimensionals very comfortable, but thats probably cause I have dumbo-sized ears…
it really depends on how much you want to spend. I think plantronics is really good on the lower end of the budget and sennheiser is really good on the upper end. Either would be a solid choice.
To give you an idea of plantronics vs sennheiser, this was in a review of the plantronics 367 headset: “Anyway – it may not be Sennheisers, but they are pretty good.” So… Sennheiser is basically the benchmark that other headsets are put up against. Just FYI.