my 2 bits:
RDP is great, i love how they derail those fics using their own enstablished personalitys for the mane 6. and the songs are hilarious.
(i also love how everyone has the wrong voice)
FIW: its great too, they use their own characterizations and characters (raincloud is francis dad) to tell their story, in the process they create some interesting and REALY likeable, things, gipsy pinky for example. which lost her whole town to a blaze/explosion in the sky (rainbow dash does genocide) or the swettiebot/robots are bad things that must be destroyed. or twilight becoming a princess by tricking mega dork luna.
FIW is definetly not only about parody and and jokes, that shit is dark. methinks.
and francis never was about incest :V
thats twilight. and its not creepy. because they are not related.