Vaughan prefered using Fender Medium gauge picks, playing with one of the broader, shoulders of the pick to get a smoother or harder tone depending on if he held the pick at a 45 or a 90 degree angle to the strings.

"Stevie usually used Fender medium picks, and he played with the “fat” end."

"There are 17 verified variations of Stevie's custom picks, but he also used plain Fender picks, and freebies he picked up from guitar shops."

At the end of this interview, it is said that St. Vincent uses Fender Medium picks.

The medium pick sits on this keyboard in this Instagram photo.

In this January 23, 2024 interview with Guitar World, Krieger discusses his inspirations for fingerstyle playing and later usage of a pick:

[Guitar World]: "How does your current process compare to your days with The Doors?"

[Robby Krieger]: “The main change is I’m using a pick more nowadays. Back in the Doors days, I never used a pick; I’d always play fingerstyle. I didn’t get into using picks until the ‘70s, but even then I still used my fingers on the old right hand often. The main difference would be using a pick and trying to get the right speed going with it.”

[G.W.]: "What led you to primarily play fingerstyle back then?"

[R.K.]: “Fingerstyle is still the most comfortable. I initially played flamenco guitar, and Wes Montgomery, who I loved, never used a pick – well, he didn’t use one early on. But later I read an article on him, and by then he’d started using a pick.

“He was asked why and said, ‘If I had to do it over again, I’d use a pick because it’s easier on the fingers.’ I felt bad for him when I read that, but I also understood what he meant because fingerstyle can leave your fingers and thumbs all thrashed up and your nails ragged.

“So at that point I said to myself, ‘Okay, I’m going to try and use a pick too.’ It wasn’t easy for quite a few years; but eventually I became comfortable enough to where I’m not actually comfortable, but I can do it just the same.”

[G.W.]: "Your dabbling with flamenco can be heard in your playing and compositions, along with your classical and jazz leanings."

[R.K.]: “Yeah, that’s most definitely true. But you also have to remember that Ray Manzarek was very into classical music, which affected the composition too. All of that definitely was a significant product of me in those styles; there’s no doubt about that.”

[G.W.]: "Did the transition from fingerstyle to pick impact your tone?"

[R.K.]: “People ask me about the secret to my tone… for starters, there’s no secret! Everyone has their own sound; and with me, a lot of that definitely came from me playing fingerstyle. But my viewpoint on tone has always been that I have my own sound, and everybody else should too. If your mother can’t recognize you when she hears your sound on the radio, then you don’t have your own sound.”

[...]

At 23:15 she says:"I use Mediums.. Fender Mediums"

It says, "An identical green Strat is tuned to dropped D for “Dirty City,” and he has a sunburst American Standard model as a spare. Strings are Dean Markley Custom Lights – .009, .011, .016, .026, .036, .046 – and picks are Fender Medium," in this article, on Steve Winwood.

Jimmie Vaughan has been known to use different cut shapes of hotel keys as picks because he feels they perform better than anything he could actually purchase. However, he also uses Fender Medium Gauge Picks when necessary and did so early in his career. This information is supported by Mike Duffy's article "Jimmie Vaughan on the White Strat That Fueled His Pioneering Blues Journey" published by Fender.

In this PremierGuitar article, Scholz's gear list includes Fender Medium Picks.

In the video titled "Rig Rundown: The Lucinda Williams Band's Doug Pettibone, Marc Ford & David Sutton," provided by Premier Guitar, Marc Ford discusses the Fender Medium Gauge Picks he uses for playing his guitars at the 19:25 mark.

This is a list of Steve Gaines entire rig. We can read that Steve used Fender medium picks.

According to Guitar Geek's rig diagram, Ekstrom uses Fender Medium Picks.

Visible in this Instagram post.