Do you like them soft or crispy? What filling do you mostly take? My favorite tacos are the chicken tacos with very spicy salsa, some corn and lots of cheese. I love them crispy at chipotle and soft at taco bell.
I prefer soft-shell - more on the mild side but once in a while I like them hotter; beef is my #1 choice but I experiment with all different types of fillings and sauces.
most of the time I prefer a soft shell with a little meat (beef or chicken) and LOTS of veggies and sauces. Usually the spicier the better 

most of the time I prefer a soft shell with a little meat (beef or chicken) and LOTS of veggies and sauces. Usually the spicier the better 

Agree completely with you on the spicy part.
For me it is not just tacos, almost everything seems to be that way. The spicier the better. I love hot n spicy food.