I wonder does my own reason correspond with other people's reasons as to why they might not like it quite as much.
Why might Robocop not be as popular with the majority as the Terminators and Predator?
I went with Predator because it doesn't age. Jungles always look the same whether it's 1970 or 2015. Sure guns and such change but there was a good discussion on IMDB about this. Overall the military clothing hasn't changed a great deal over the past few decades.
That and the fact I love jungle films. All that lush greenery hiding about and camping in spots hiding.
As much as I love Terminator, 2 and Robocop they've aged badly now. I see them and I feel momentarily for close to 2 hours stuck in the 80s. Yet Predator has a similar feeling but a different feeling to the 80s. Look at the guns, they don't look that old. Kevlar hasn't changed much, or military clothing and so on.
Plus the fact how good Predator masks and equipment still looks fantastic today. Looks like something you could expect in 21xx/22xx.