If you get the Platinum SkyMiles Card you are left without Sky Club access. I would go for the Reserve. I have it as well, and it plus my GM status is a good combination for getting me in to Sky Clubs and Sky Team Lounges.
Will you be able to put your business expenses on this card? If so, you probably won't have too much trouble hitting the first yearly bonus at 30k for 15k MQMs and maybe even more.