Well, I've totted up the votes and the winner with by far the most votes, is THE FLEXITARIAN TABLE by Peter Berley (13 votes)
These books were next in line (in order):
Diana Kennedy (several books) - 5
Spice - 4
Bombay Kitchen - 3
World Vegetarian Cooking - 3
Julie Sahni - 2
Cradle of Flavor, Tapas, and Crescent City - 1 each
In a couple of weeks, I'll put up the threads for the various chapters in Flex. It presents a challenge since the recipes are set out in 2 categories: Season of year and Menu. I'm thinking of making the threads courses (dessert, meat main, veg main, salads, etc.) to make it more friendly to those looking for recipes for individual dishes rather than whole meals.
Any suggestions are gladly accepted.