Resolution for my first project ? Com. with iPhone 5s,6 and 6 Plus

MagnetoX

Hello,
I would like to create first mobile game. At first i would like to know how resolution i have to use in my project - my project should be compatible with iPhone 5s, 6 and 6 Plus. Each these phones have different resolution.

1. Should I create graphic in iPhone 6 Plus resolution ?
2. What happens if I create game in 1024x1024 resolution ? In iPhone 6 Plus my game will be half of the screen ?
3. What about RPG games where the world is bigger than other games ? It will be problem If I use 2000x2000 px map in my project ?

BBEnk

iPad.

http://forums.gamesalad.com/discussion/72589/universal-builds-for-ios-and-android-and-anything-else-using-ipad-build-and-stretch-no-distortion

http://forums.gamesalad.com/discussion/72604/universal-build-flexible-aspect-ratio-stretch-trick-with-video-and-template

http://forums.gamesalad.com/discussion/comment/497976#Comment_497976