I have only ever had three 'sweet' pies, apple pie (and then only small premade boxed ones), lemon meringue pie and mince pies, all of which are nice.
I would like to try a homemade cherry pie though. I'm also curious about pumpkin pie (although my family are disgusted by the idea), however I have never tasted pumpkin or pumpkin-flavourings before (we have pumpkins here but they're almost exclusively used in pumpkin carving for halloween).
Other than that I have mostly had savoury pies.
I'm not keen on any 'pie' that uses mashed potato instead of pastry, such as cottage or shepherd's pie.
Chicken and mushroom pie, homemade, is probably my favourite.