seriously? Runescape? People still play that?... don't bother... he's far beyond repair...
*rofl* Runescape _was_ a wonderful game - real quests (requiring thought), a meaningful skill system, and reasonable play for people who can't constantly be on with friends (at predictable times, for long periods, etc.). I'd be playing it now, rather than RoM, but the current management seems bound and determined to make it as similar to WoW as possible - and what they are getting is more like a poor imitation. - most of the vices of WoW and its clones, few of the virtues. If the OP's friend liked Runscape circa 2006 or earlier, they quite likely won't appreciate Wow/RoM etc. (I'm not familiar with any of the other games the OP listed, but given that I do like the old Runescape, I may check them out.)
He's also right about the originality. AFAICT, WoW and its clones (in which I include RoM) have an awful lot in common, and a lot of it seems to me to date back to diku muds. If you strip off the text of the quests, you get "kill x of mob y"; "collect x of item y by killing mob z" and "go talk to npc x". Then you have tank+healer+dps all go out in a party, and kill things together for equipment. There are ordinary opponents and bosses; combat requires a lot of attention and clicking. Gear comes in sets, and you try to collect the complete set. Etc. etc. etc. There's very little to do other than combat, though many of these have a crafting system - often rather half baked and useless - but a step ahead of dikus, which did not. What saves RoM from being identical to every similar game (a diku with graphics) is mostly the rather well thought out text you get when you read what the npcs have to say, and follow their quest lines. Some of the quests are clever. That, and the people - good players can make a boring game fun, and bad players can make an otherwise well designed, highly original game unplayable. But the game mechanics? Been there, done that. repeatedly. At least, unlike too many dikus, each of the Wow-clones has their own unique areas ;-)