I like temples, especially on corners. However I find the Lvl 4 area effect to be rather useless (at least to me). Also, temples have the second best upgrade path (after crypt), and gain XP faster than other tower types. Evil Eyes and Beholders become drastically more powerful as you put points into the Den upgrade path. Blaze is usfull for keeping mage’s shields down if your towers are spread out. Oh, and investing in Metor upgrades early makes everything easier. Does anyone really use Frenzy? For what it does the price is to high.