He's a borderline case. Some of his work has "smooth inclinations"
Yup. Of course, the only disc I ever kept of his was Sweet Georgia Peach, which is sweet indeed. Since then, well.....
I've never heard of any connection of Malone to what I think of as smooth jazz. He's always been relatively "conservative" as a jazz artist (which I have no problem with whatsoever), and been with major labels... and worked with Diana Krall, BUT he's an absolute monster musician in terms of jazz technique and ability (and has been for a long time). Maybe he's done a thing or two with some of the smoothies (no law against that either... in fact a discussion here about Ernie Watts' connections to smooth jazz comes to mind), but I'm unaware of it. I don't follow Malone's career closely at all, as his style/sound never really grabbed me, but I have seen proof of his chops. For me, he's way ahead of guys like Mark Whitfield, Rodney Jones, Bobby Broom... all of whom were/are in a similar kind of bag. Malone is a stud.
Yes; granted, I'm no Malone expert, but I'll gladly take him over any of the other guitarists you mentioned. In other words, agree completely. I like Malone, or rather respect what he's doing, even if it doesn't really grab me. Very notable exception: his playing on the Herbie Hancock tribute with Payton & McBride. HECK YEAH!!!! I sorta wish he would do an all acoustic album (meaning he plays the acoustic guitar).