I pre-order both HG and SS so I received them around the same time. At first I thought I would like HG more, but I start SS first and I did so much on that game: I won a tournament at an anime convention with Soul Silver, I have 30 Eevees, a ton of rare and shiny Pokemon, battled Sabrina over 20 times, have a lot of foreign Pokemon, my Globe is full with yellow dots, etc. I have more progress on Soul Silver than any game ever, so I prefer SS.