Here are my opinions of six different dilators. I've spent way too much money trying to find the best dilator. Hopefully, I can help others not do the same thing.
The ones that I like:
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Dilatan - These stay cold (or hot, if you prefer) due to being filled with a cryoliquid. These were absolutely essential at first, because the cold took care of inflammation that I had (that I think was related to my bleeding problem). They are 100% firm, though, so I occasionally would have discomfort after dilating from the end poking me, especially with the bigger ones. The 30mm one never worked for me.
Sinclair Select Deluxe - These are really good, but the firmness changes with size (small-floppy, large-very firm). They have a 7/8" one, which is great to transitioning to from 3/4" to 1". The 1" one is perfect, because it is a little firmer than most on the market but bendy enough to not poke the sides. That one is the best one of all for my dilating.
Soul Source - These are really good, and they have 1/8" steps that make transitioning easier. They need lots of lube, though, to prevent rubbing against the sides.
The ones that I don't like:
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VuVa - These are hollow plastic, so you can't cool or heat them. They are also a little rougher than I'd like. Not bad if you want a light, firm dilator.
Intimate Rose - These are very similar to the Soul Source, but a little slicker. The horrible thing is that they stupidly etch their name into the rubber along the side of the dilator, making it rough.
Fuze Step - I just used this once. I felt some discomfort afterwards as if it rubbed to much.