I would Recommend you to stay at Dhikala Region for Night or two, Amazing stay and Great Experience you will get, and Spotting Tiger chances gets really high if you stay over there and go for Safari From That Region. And the Scenery from that Stay is best among all the other Stay in Cornbett Region.
I have not been there recently but when I had visited a few years back, the safari wasn't really worth it... atleast that was my opinion but things might have changed by now