Tetsubo said:
Monsternomicon, hands down the best monster book I have ever seen...
But it doesn't have a lot of monsters for the page count, which is something that he wanted.
And, you know, I know that people love this book, and I bought it off the effusive recommendations here at ENWorld, but there's like
five monsters that inspire me in this book, tops.
I like Creatures of Freeport, myself, and think that it has an excellent quality monsters to page ratio. I also find Denizens of Dread, the 3.5 Ravenloft monsters book, has enough interesting monsters for two or three campaigns. Advanced Bestiary, which is a book of templates, has a sample creature for each, most of which are worth running as-is (they picked really interesting monsters to template up in each case). And of the WotC monster books, I find that Fiend Folio has several really good monsters but a lot of very borderline ones. Monster Manual II and III are both mostly middle of the road, with some notables, but nothing astonishingly awesome.
Oh, and the Living Spells from Eberron/Monster Manual III
are so cool that they should be in the core rules. I would be amazed if they weren't in MM1 for every future version of the game.
And for a statless monster book that will make you dust off some "boring" monsters from Monster Manual I and breathe new life into them: Arthur Spiderwick's Field Guide to the Fantastical World around you. It's theoretically all fey, but that's used rather broadly here, and it covers fey, trolls, ogres, dragons, unicorns, griffons and more. Best monster book I own, no question.