I don't know about you guys, but I'm sick of multiple battery connectors for these damn airplanes. I mean, I get it. It's par for the course but we don't have to be happy with or settle for it.
I personally settled on the XT60 connectors only because that's what FliteTest was offering at the beginning and at first, with the mini's they were using the xt30's but I could only find a multi port balance board for the xt60 so I cut all my xt30 connectors off and resoldered on the xt60's which I've used ever since. If I can get at the connector on the aircraft as well and convert it to XT60 permanently I will, but more often than not I use the Venom Power Uni Plug adapters they're giving away with their XT60 battery packs so I can keep using my personal stash (read 36 batteries) of xt60 configured batteries to fly my stuff.
Typically I only find the EC3 connector or the Deans T type connector on the speed controllers for the E-Flite and whoever made the Tidewater foamies I buy. All the planes I build from scratch use XT60. Anyway, when you buy a BNF or a RTF, it'll come with a battery with the connector to match the speed controller, so with a uni plug I bought from amazon for 2 bucks installed on the speed controller connector and a little soldering know how I typically just replace the end on the battery to make it an XT60
If you're interested in learning about this, here's a youtube video showing how to do it:
Again, if I could get my helping hands into the cockpit of the aircraft (maybe I can, I'll have to look into it.) I'd convert the speed controller permanently.