Multi-world story world lineup idea

Okay so this is basically what i would consider a good World lineup for any system / gamer multi-world story and the reasons why

1st-[The Walking Dead or High school of the dead] Okay so the reason I chose these 2 is first it's because if you look at the world it's not exactly too hard to survive especially if you're mc is prepared for the collapse so it's pretty much an easy mode world if you have time prepare You have some technology a little violence. zombies are not exactly hard to kill or outsmart the only real threat is hordes of zombies and other humans which in most world the less of your dropping your MC off in a peaceful world humans are always a threat even If you choose to drop your character right into the shit at the start of the series it's still not exactly that hard if you have a system to survive so for a starter world I would say it's pretty good to get you adjusted to the Mayhem and Chaos you're mc is going to be dealing with later and to get you perp for your next world

2nd-[Game of Thrones/a Song of Ice and Fire] So for this one I would say is a nice medium world because you have a drastic culture change from technology and being able to scrounge for easy food from supermarkets too pretty much living in medieval times while it's not exactly super hard in combat especially if you have a system because unlike number 3 you would have super assassin's or people who can one shot you however have other dangers armies Bandits white walkers slavers and such but if you have a system and your setup from the previous world it's not exactly a really hard world but more of a medium one depending on where you were chose to drop your MC will depending how difficult it really is

3rd-Harry Potter or Naruto Now this is where I would say things get usually pretty hard for your MC because now you have true superpowers and Magic thrown into the mix unlike Game of Thrones where magic is hard to come by and not exactly having people throwing City destroying powers here you can get wiped out by walking across the street at the wrong time Weatherby HP and a random Death Eater attack happens and you get hit by a killing curse or you catch the attention of someone nasty and they decide to assassinate you before you can even reach the age of 5

4th-Star Wars Here's where I think things get tricky but really creative as well depending on the amount of carryover you have from your last worlds Star Wars usually can be a lot of fun and the reason I named it for it's because it's the most expensive universe and surprises can come from anywhere The other thing that I like is that Weatherby Naruto or HP they translate over I think very well and does not give you instant super powers that let you stomp the final boss with no problem from the get-go they do how or give you a lots of utility especially HP