I normally have a vindaloo but have had several phalls in my time and eaten them - although one made me very, very ill.
Vindaloo, rarely have anything milder than a madras, if you're having a curry then you may as well know about it!
I go as hot as a Pathia. Anything hotter than that tends to kill my tastebuds and all I can taste is hotness rather than actual flavour.