Sejs said:Either could be fun, but I think all the same race would be easier on the DM. All the same class requires the DM to adjust the way in which he designs adventures on the whole, race just requires he adjust the flavor.
Kid Charlemagne said:Either one would depend greatly on the campaign to be run - if he's asking that, he's got specific reasons. I know a guy who's getting ready to run a all-dwarf campaign based on the idea of retaking a Moria-like underground city post-Balrog. Another DM once proposed (but never undertook) an all-rogue game.
Either one could be loads of fun. Especially with multi-class options being on the table too.