I prefer the T3 over the evod. The evod is just a tad shorter in length but I prefer the larger capacity for ejuice in the T3. The evod and MT3's small window makes it harder to fill. And the evods I have, have a 'gurgling' problem the T3's don't have. MT3's vape well but I don't care for the window and the extra weight of the cosmetic metal skin.
The 1.8ohm coils are a good match for the regulated eGo, although a 2.2ohm coil is better with lighter flavors - fruit, berry, vanilla, coconut... If the 1.8Ω isn't
quite hot enough - the eGo-c 'upgrade' batt in the unregulated mode (orange led) works well. For more heat than that, you need to go to the Twist.
One note - many of the T3's, evods, MT3 and protank ship from some vendors with the 2.6Ω coil in it and it is too cool a vape for even my lightest flavors on the eGo in regulated mode. Other vendors ship with the 1.8Ω coil. If one is getting too light of a vape with the T3 - most likely you have a 2.6Ω coil. And some of those meter out at 2.7-2.8Ω - although some of the 1.8Ω coils meter at 1.9-2.0Ω
BTW, the OP went Go-Go/KGO