I finally talked to the professor and she too was regretful that there was no assurance I could be given on the admission to PhD. Also, she said that I could do a good (kickass) PhD from UIC. She understood my priority and that settled it in favor of UIC.
I will apply for transfers later to different schools, but choosing MS now may cause me Visa problems later, i.e. I may get stuck waiting for an F-1 Visa after my MS. Currently I have a J-1 for WHICHEVER program I choose.
I myself find the decision tuff, but I may not settle in US after all, outside US the UIC vs GA Tech Thingie shudn't haunt me.
anyway, I'll say TM ROCKS!!!! No doubt about it.
Thanks to all of you for support.