The Redcliff looks like a lot bigger footprint than the TUT, and a little bit taller, and significantly heavier, per the specs. As mentioned, they seem to be different size classes, 1-2-man, vs 3-6 man.
It looks like the TUT and Cimarron are more similar in size/weight, the TUT being a bit taller, the Cimarron having a bit larger footprint.
If standing room is a must, a lot will depend on your height. I'm 6'3", and could not stand fully upright in 6'10" SO 4-man tipi, without my head touching the fabric and/or pole. To get the real standing room I wanted, I ended up going to a 6-man tipi, at the cost of extra weight/bigger footprint.
Lots of tradeoffs, depending on your wants/priorities.