Hmm… let's see.
On the one hand,
the guy who has produced System Shock 1–3, Thief, Deus Ex 1–2, Crusader, CyberMage, Wings of Glory, Ultima 6–7 (parts 1 and 2), a Privateer expansion, Super Wing Commander, Ultima Underworld 1–2, Martian Dreams, Wing Commander and its expansion, and Space Rogue; designed Epic Mickey (and oversaw its sequel), Ultima 6, and Space Rogue (that he also programmed); wrote for Wing Commander 1–2 and Ultima 6; and who created documentation and manuals for Wing Commander 1–3 and Ultima Underworld 1–2.
On the other hand,
the guy who produced Conquest, Starlancer, Wing Commander, Wing Commander, Wing Commander, Wing Commander, Wing Commander, Strike Commander, Strike Commander, Wing Commander, Wing Commander, Wing Commander, Wing Commander, Wing Commander, and Times of lore; designed Freelancer, Wing Commander, Wing Commander, Wing Commander, Strike Commander, Wing Commander, Wing Commander, Wing Commander, Bad Blood, Wing Commander, Wing Commander, Times of Lore, Ultima 5, and Strykers Run; programmed Wing Commander, Wing Commander, Strike Commander, Wing Commander, Bad Blood, Wing Commander, Wing Commander, Times of Lore, Strykers Run and Wizadore; who wrote for Conquest, Wing Commander, and Times of Lore; who made art for CyberMage, Wing Commander, Strykers Run, Wing Commander, and Wing Commander.
As much as there is an argument to be made about sticking to what you know, I know which of the two I'd expect to have the broader insight into the various tasks, crafts, and arts that go into the making of a video game, and who'd have a better appreciation and understanding for the designs and requirements of the myriad of game play styles and the underlying mechanics and designs required to be able to deliver satisfying gameplay to a wide variety of audiences.