It's pretty easy to tell my two favorite types from this picture.
>Gen 1
I like Gengar too, but growing up I had no one to trade with so I had to stick with Haunter, which caused it grow on me a lot more than the former.
>Gen 2
Really hard to pick one considering this is the Gen I have the most bros in, but I eventually chose Scizor because I love everything about it: cool color scheme, fantastic design, great typing, useful as fuck competitively and is also my favorite cross-generational evolution (Scyther was also my bro in Gen 1)
>Gen 3
This gen has my favorite Ghosts, the only one I really never cared much for was Dusclops, but maybe that's because to me it isn't quite up to par with this devious little fella, whom I think has the best design out of all Ghost Pokémon. I'm not a fan of Dusknoir either if you're wondering.
>Gen 4
Lots of ghosts were introduced this gen, but quite ironically my favorite is the one that's an evolution to a often overlooked and forgotten Ghost from another Generation. I really like the "witchy" features they went for with this design, it really appeals to me and I think it did Misdreavus justice as an evolution.
>Gen 5
If you don't think Cofagrigus is the tightest shit then get out of my face. Only wish it would've been Ghost/Steel, I've been wanting that for a long time now...
>Gen 6
Oh, seems my wish has been granted!
