I like blue cheese if you are going to do a chopped salad or a wedge with blue cheese crumbles and bacon. If you are just doing a regular old salad I'd do the raspberry...unless of course poppyseed is an option.
I like all kinds. Bleu cheese is my favorite. I got sick of ranch - but I like to mix ranch with italian. I love that oreintal sesame dressing they put on that oriental chicken salad at Wendys.
As a picky kid all I would eat was french dressing. If we didn't have any I would mix ketchup and mayo. I can't imagine eating that on a salad now but I bought a bottle of creamy french a couple of weeks ago and remebered how much I still like it.
Not sure the name brand but I have been eating a lot of the Ginger salad dressings lately. Other than that Marie's Bleu Cheese or I make my own with Olive Oil, mustard, Balsamic Vinegar