It’s not just the first thing players see. It’s the one thing that sticks to every single player of the game because you see and hear it every single time you log into the game.
You left out the BEST League login screen though. 
personlly i like it if it stay as picture (performance reasons XD)
and might be nice if its editable 
ps: a music player within the game might be nice too! opening music player, turning off music in game client… playing prefered music is tiresome … >_<…
Since it will be on Steam you can just shift+tab and use steam music.
oh nice … @_@"
(im not too familiar with steam =3=")
hmm so thers no stand alone client for ToS?
What am I looking at even… >.>
They might only launch the download through steam =o
Static login screens can be good too, though. Mabinogi’s login page was a static image but it was cool seeing a new one each update with its own awesome login music.
That Ragnarok Online II one is really really nice though.
It has more “Tree” in it that’s for sure XD
When I first saw/heard that screen, I was like… “omg, I’m so happy ToT”
I remember RO’s login screen because of that entrancing harp/flute theme, not the visuals 
Probably one of the best login music of all time…
It was just so soothing… I remember that I used to just open my client for 2 hours just to have that music playing while I was doing my homework lol… 
Aqui está outro Exemplo,Tela de Login do Aura Kingdom
Uma Tela Mostrando a Cidade Principal e Mostrando Alguns Campos Com Mostros e Uma Musica Agradavel de Fundo…Seria Muito Bom pro Tree of Savior
The music is composed by Yoko Kanno, too. ^^ Unfortunately the only good thing about RO2…
Thanks to the forum’s translator, I can understand you! 
That game looks interesting.
This is a pretty cool log in screen:
Why have a login screen at all? Letting the launcher handle that is the smarter thing to do. Same with queueing (let’s hope queues aren’t necessary but who are we kidding, we already know rabid gamers will topple the servers for the first week at least).
Having no log in screen is like throwing tradition in the trash!
I feel just a bit bad for the low-end pc/laptop users, so an option to disable animations on login screen would help if you guys really prefer it like that.
My Policies on Login Screens
- No Ads. (unless incorporated into the design, I find these really tacky)
- Memorable design and music. I want to hear the login music in a subway for 1.5 seconds and have the login screen appear in my head, followed by a short burst of joy/excitement for no reason but that image.
- Game version shown.
- Everything doesn’t blend into itself.
- Doesn’t eat half my memory just to stay on this screen.
- Has the options menu available
- If you want to get rid of it altogether and just have it done through the launcher… that is the login screen.
- Tradition is overrated. (?) Values are important, tradition is optional.
Examples
Maplestory
Great music and design. I practically woke up everyday just to speed-login through this.
Despite that, it’s the kind of login screen that few people forget.
Simple, clean… and if the game is good… absolutely enthralling to see/hear.
(I’ve played many a good games whose login screens I ignore)
League of Legends
The one that sticks to my memory : www.youtube.com/watch?v=IBphxrYgJOg
Others : www.youtube.com/playlist?list=PLbAFXJC0J5GZHUtGea_zQR0OyD3UBuw9s
These are the most classy login screens I know of.
I’d rate these highly on their design alone.
Guild Wars 2 (beta)
This was only used in its beta. Switched to Launchers
9.8/10 for efficiency, design and options.
Guild Wars 2 (launcher, post-beta)
Clean, efficient. Memory’s a little hazy…
I believe the launcher’s settings could only be accessed after the login.
I doubt the ragnarok 2 log-in screen eats a lot of computer resources so it should be fine, though one good example of log-in screen that makes people lag is aura kingdom’s screen.