I've got three EVODS and a mini Protank 2 (another on the way). Love all of them, the flavour on the Protank is a bit nicer but I don't like how top-heavy it is on Ego/Evod/Spinner batteries when I'm out of the house, it feels a bit unwieldy. I was experiencing dry hits (ugly burning gym locker smell, to my nose) on the EVODs but I think it's mostly because I was exceeding their capacity to wick juice (I'm 17 days in, not an analogue since, but I tend to chain vape at times to get a harder nic hit). Now that I'm tempering a bit, no dry hits; I'm getting to know how much is too much.
One really important thing to me is that I can swap the heads between the EVODs and the PT, which means if you only buy even a five-pack of replacement coils, you can always have one cleaned, dry-burned, and ready to go, whichever tank you decide to bring with you, even if you've got four tanks loaded up with various juices. To me, it turns out that's really, really useful. When one of them starts underperforming, or even just tasting a bit off, I can set it aside and soak it and pop in the new one, cleaning the old one when I get a chance.
Even though I haven't got any experience with the T3, I'm going to echo what many others have said in this thread and say you can't go wrong with any of them. I'd say buy one (or more) of each, if it's within your means.