1. Steins;gate (KUUUUUUUUUURRRRRRIIIIIIIIIIIIIIISSSSUUUUUUUUUU)
2. Kara no Shoujo (I know not many will agree with this one, but I really liked it, also my avatar hints to the reason...)
3. Ever17 (first one I read+awesome plot)
4. Umineko no naku koro ni (Have yet to play chiru, loved the whole setting)
5. G senjou no Maou (Dat ending)
6. Little busters (Dat Refrain)
This are the ones I would review higher than 9/10 (steins;gate being 10/10 for me), note that I have yet to play Clannad/muv luv (alternative)/Sharin no kuni and Fate/stay Night and a lot of 'lesser' VN.