I wonder how well N64 would\'ve fared without AKI and Rare. Seriously. Nintendo has got some damn good 1.5 party help.
As far as Dreamcast - they\'ve got some outside help too. Capcom for one. They also got a nice port of Tony Hawk 2 - if that had been exclusive to Dreamcast, damn. Not too mention other titles like TD LeMans and Quake Arena. Sega still has over 130 third parties developing for it. Their third party support isn\'t as pronounced because it isn\'t as prevelant as Sony\'s. Sega has a LOT of first party titles. Sega has more first party titles than most third parties have! Also more than Nintendo. VF3tb, VO:OT, Sega Rally, Daytona, NFL2k1, NBA2k1, NHL2k, WSB (ugh), Skies of Arcadia, Shenmue, Sonic, Sonic Shuffle, F355, etc etc etc.