you are right bitcoin will dominate in local people across the world and litecoin might catch up the train as well. However, ethereum will be the most valuable among developers and tech savvy people, i can see ethereum atleast half the price of bitcoin if the developer team continue to persist meanwhile, because of where actually we are heading.

NXT will also gain signifant value if they market their roadmaps and continue achieving their targets.

Steem will gain a value as a business, not as value exchange so does synereo.

Happy cryptocating :D