The choice of platform depends on the apps you are planning to host.
Linux is much cheaper than windows. For instance, Linux is for php sites, and Windows of asp, asp.net apps.
Taking the advantage of the opportunity, can recommend
boomhost.com Linux cpanel hosting deals.
Pricing is quite good.
They will pass on the savings to you.
They have a promotional offer running with recurring 50% OFF for LIFE across all of their Linux cPanel hosting plans. Use coupon code: 50FORLIFE