On the 727s, I'd say GeminiJets wins on both the -200 and the -100. Don't be fooled by Aviation400's slotted wings... the shape of the tail is inaccurate (Richard explains that well in his 727 mold article) and they only released a handful of them anyway.
Aeroclassics 727-200 is alright, but their -100 is pretty crude, they get points for the unmatched offering of highly popular liveries, and in my case the huge selection of LaltinClassic 727s they have produced. Gemini's variety is not bad, and I think their 727 molds overall look better even with those ugly seams.
I will also take Dragon's 727-200 over AV400.