Everyone's mentioned pretty much all the major reasons that Tesla is still generally considered as leading the pack when it comes to EV's. This may be more of a case for the U.S where there's a massive discrepancy between the Tesla Supercharger Network and third party public chargers, but when it comes to someone who's generally uninformed about EV's and having them drive from part of the country to another, Tesla's whole approach will take care of them.
From GPS route planning that'll automatically incorporate Supercharging stops, tell you how long to stay/when to leave, pre-condition your battery for optimal charging temps, and can show you live status of charging locations with how many stalls are in use, out of service, and available, Tesla's the easiest to recommend from that perspective.
From just a car perspective there are a whole host of great EV's out there, most of which people have already mentioned (Ioniq 5, EV6, Mach E, Taycann, Polestar 2, Rivian, HummerEV, VW ID.4, etc etc). And a lot of them will do one or two things as well or better than Tesla. Like the Taycann technically charges faster at a peak of 270kW, the Ioniq 5/EV6 have way more impressive charging curves, sustaining 230kW from 0-70% or so. The Rivian offering you the pickup truck experience before Tesla even could. However, none of them have the whole, well-rounded package. Ioniq 5 and Rivian R1T can't precondition their battery so you're not guaranteed that insanely fast charging curve. Taycann has a much worse range than the comparable Tesla in its class. Most are terrible at route planning while incorporating charging stations and none are as comprehensive as Tesla, meaning a lot of the time they will throw in slow L2 chargers and fail to notify you of out of service or busy chargers. And speaking of chargers, in the U.S, that's the biggest weakness of non-Tesla's. The unreliability of Electrify America, EVGo, Chargepoint, and other third party charging installations is laughable compared to the Tesla supercharger network.
The way I look at it, as of now, if you have home charging and will rarely, if ever, go on road trips then there's a massive selection of EV's out there, many of which will probably suit your needs better than a Tesla. But if you're looking to get an EV that's the most comparable to an ICE car, then Tesla still holds that crown.
