Whatever adjustments you make should be suitable for the music you are trying to create.
The biggest problem with the vocal sound (apart from frequent intonation issues) is that there is this nasal "twang" as mentioned above - and as someone well versed in vocal coaching, I can hear that not all of this is natural voice - there is equipment colouration that translates into a kind of muted overall sound.
The net effect of this colouration is to make the voice sound as if it's crammed into a small area, although it's clear from the singer's approach that the intent is to sound expansive (and club-filling, to take a cue from the lyrics).
Concentrate on EQing the area suggested by mindundermatter - somewhere in that dial is a setting that will bring out the colour you want in your voice.
The other EQ bands will also help with colouration, as you know, but there is no standard. This is something you have to work at, like getting the tone you want from your voice in the first place. Getting the tone from the equipment takes the same amount of playing around/practicing, because ultimately, the tone you're trying to get is YOUR tone, not someone else's - and maybe a different mic.
Hope this doesn't come across as condescending - but if it does, then I won't be surprised. I'm always accused of being patronising - but I am only trying to be helpful in my way. No offence meant.
