BH2VYJ
I've used T-port, XT60, XT30, and Anderson connectors; but ultimately, I find the XT60 to be the best.
The T-connector is too difficult to use, and the connectors themselves are of poor quality. Nowadays, most RC batteries use XT connectors, while T-connectors are outdated.
Soldering to XT ports is convenient; the insertion and removal force is appropriate.
Anderson felt that they were too complicated and cumbersome, and I had tried a few myself. The connectors have spring contacts inside, and the structure is quite complex. Perhaps my own skills are not up to par. The finished product's contact isn't very good, and it performs much worse than an XT60. Of course, the current-carrying capacity data shows that it's higher than an XT60.