CEX is what all retail models come on, even jailbreaks. It's what you're used to.
DEX is a developer firmware.
Do you think CEX is better for me?
CEX is better for you if you completely new modding And are looking to do basic mods. You are also able to data transfer on CEX. I have come across people saying you are not able to rtm on CEX, well this is a lie, there are
plenty rtm tools which work on both cex and dex. It is also easier to connect a rtm tool while on CEX. There are tools though which only work on dex such as black ops 2 rtm mod menus.
Do you think DEX is better for me?
DEX is the best option if your main plan is to mod games, host lobbies etc. The process of connecting the tools is longer but it is worth it. There are also better protections for DEX to reduce the chance of getting banned online. DEX is
also better if you want to learn about programming tools.
Thanks, but this was not what I asked for

I want to know what the advantages of ITA are.