Sounds like you are flexible on the time of the year. Weather and green are so unpredictable. There was a huge difference between the exact same dates in October 2014 and October 2015 for Samburu. I went back because of the spectacular colors, especially in relationship to the elephants. There had been rain around the time I was there, but everything was totally dry. Even the river, which had been up to the top in 2014, was totally dry. The giraffes were great. Lots of ellies although they were lacking that wonderful red color due to being washed by the rains. Overall, significantly less wildlife in 2015 than 2014.
I've always enjoyed Sweetwaters, particularly for the rhinos and this year I was able to get some great photos of the 3 remaining Northern White Rhinos through their protected fencing. I think next trip, I'd like to give Solio a try. Only thing I dislike is that you must use their guides. I always prefer to be with the guide I travel with.
Saw quite a few rhinos at Nakuru and it seems greener at most times of the year.
The ellies in Tsavo West were spectacular. The caracal wasn't bad either.
As you know from going more than once, every trip is different even it going to the same places. On this 6th trip last October, it was the trip of wonderful giraffes, great cheetahs and spectacular male lions. October 2015, the handsome male lions were in short supply.
Laurena