Luckily, I just found a site that, by all appearances, reviews and rates fantasy books, trilogies, and series. It's called Ranting Dragon and seems to be, as my students would say, "legit."
To be fair, the only books I've read on these lists so far are books I was reading from previously selected series (such as The Wheel of Time) so I can't really speak on how accurate, IMO, their rating system is for the other books. However, I plan to buy a book from one of their series soon and read it to see for myself. I have high hopes for this, and if it pans out that I like their suggestions, I've just found a new site to help guide my book selections.
I'm sharing this site in advance of that in case any other fantasy readers have been running into the same problem and want to check it out. It seems like a lot of their reviewed fantasy is urban fantasy, so if you're not a huge fan of high or epic fantasy, they might have some great suggestions for you over at Ranting Dragon.
Check it out and tell me what you think.