Lots of interesting options listed.
Nathan2222: It is, but for some reason, it doesn't truly target mobile browsers and TIZEN. It is the most versatile of the bunch, and I do have a use for it.
NightCreature83: Unreal engine looks good, but if you wanna use it for commercial use, don't you have to pay a fee of $2500?
EddieV223: Looks interesting.
In the end, I'm going to use different engines and frameworks for different platforms. Right now, I'm using GameSalad, Phaser framework, and eventually Unity to cover various different platforms like mobile browser, iOS, Android, Windows Phone, TIZEN, and some others.
To me, this is the best decision since some IDEs and frameworks are optimized for specific platforms. For example, both GameSalad and Unity don't truly cover mobile browsers so I'm going with Phaser for that while only Gamesalad is able to target Tizen. Both GameSalad and Unity cover multiple platforms so games made on that will have more targets.