Well what's your mission:
Travel - footprint, a 15" T is too big for ULCC aircraft
Weight limitations in carrying it
Connect extra monitors?
Around-the-house computers don't have to worry about battery, size & weight constraints, but those are big deals on the road
Peripherals? More ports = fewer dongles
HDDs external? Got a thunderbolt dock to handle them? if not you'll want to plug in directly, and those hi-speed ports go fast
Battery life? Travel duration, working in airports, blah blah. I found the lenovos pretty thirsty in order to perform how I want, but I have a lot of shit to plod through
Screen matter? Thinkpad biz models look like shit, the ones they gave us before were 1080 and it was just gritty. I didn't think I'd mind but over time I grew to dislike it, you can't have a huge canvas w/ super fine display like the fancy ones
Then the workload: What programs, what peripherals do you need for work, how many monitor connectors do you want, do you need lots of ram or graphics support for CAD, video editing, or games
I still like the thinkpads, if I were getting just a beast to leave at home and enjoy I think I'd be pretty content with getting a P73. 17.3" screen, good keyboard, number pad, even an 8-core i9 9th gen...those will be pricier though. Funny thing about thinks is that they have a second life in resale - once a good model drops cheap enough, it can get a second wind when the reddit trannies start to use it, which helps push prices back up.
But I haven't shopped since last year, I was eyeing one of these for my next notch up, it was only the monitor limitations that kept me away from them. I started with the 480 and wasn't blown away, ended up outgroing it pretty quick. Useful biz laptop but not if you need graphics, recording, demanding jobs. They're cheaper though. T480(modular battery, ram, easy mods) the or the slim T490 and T495, both of which get soldered ram and built-in battery at a smaller footprint IIRC.
https://www.lenovo.com/gb/en/p/laptops/thinkpad/thinkpadp/thinkpad-p73/22ws2wpwp73
https://psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_P73/ThinkPad_P73_Spec.PDF#:~:text=Supports%20up%20to%205%20independent%20displays%20via%20native,%28up%20to%204K%4060Hz%29%20or%20ThunderboltTM%20%28up%20to%205K%4060Hz%29
I don't mind shopping for these because I did a bunch of thinkpad research when people talked me into them. They're probably better than the other windows stuff from acer, HP, dell at most price points. I'll see if I can find more links. But again, it's all in the mission, and what you want to do with it