how to choose...
outside of tarot cards, i also read with d. virtue's "angels" and "fairies" oracle cards--i have combined the two decks.
when i read for myself, and i don't want to fool me, i use the i-ching. it's hard to fudge with "the sage"! it'll even tell you to "get over it", whether you wanna hear it or not (usually not, in my case).
i also use a pendulum on occasion, for the practice of intuition; and the soul cards 1&2, for meditation.
tatiana's oracle is also fun, for simple, light-hearted questions, kinda like the "magic 8 ball" in dark blue velvet.