I got some green and some red ones.
On the left the AliExpress green LED, on the right the Tayda A-1553. Of course the photos don’t accurately reproduce how they look in reality but you can get an idea:
The AE is diffused and is brighter than the Tayda but not blindingly so on-axis — but only because while the series resistance on the Tayda is 2k, on the AE it’s 60k. (Power supply is 12 V.)
Forward voltages are 2k for the Tayda and 2.2k for the AE. So current, with the above resistances, is 5 mA for Tayda and 0.2 mA for AE.
I’d say to make the brightness roughly comparable to the Tayda with 2k, the AE needs about 160k.
The AE is also greener than the Tayda. I never thought the Tayda looked un-green before, but next to the AE, it definitely looks a lot more yellow.
One drawback is the leads are shorter on the AE. The Tayda’s leads are just long enough that you can solder one next to a 1/4" closed jack and it’ll reach through a hole in the front panel. The AE LEDs would need to have their leads extended to do that.