Both young spinners with tremendous potential, one has a fair bit of domestic experience, one has been fast tracked to the national team.
Muirhead has looked pretty impressive to me, and looks like he'll be given a fair bit of exposure since people are showing a lot of faith in him. Borthwick, with the amount of FC experience he has might just do better in the longer formats and won't need a long time to settle down, since experience is a lot more important for a spinner to get better at the art.
Who's your pick?? who has a better future??