"Best for the new shooter", eh?
Ok, let's take it one more level:
Young adult, adult, or senior citizen - able or disabled?
Male or Female?
'Gunning' family history, or of age to be, or have been, indoctrinated by that lovely Dept. of Education, born under Nixon?
Military tradition family, or, 'crazy uncle Viet Vet'?
"Best gun for the new shooter", and I INCLUDE myself, with a hiatus of many years due to the politics of former ex's families. ("Marry me, you marry the family".) I am 'getting senior' as we speak, and by health, do NOT have those swift kung-fu moves, anymore. Which makes me one of those: "too old to fight, but not too old to shoot", or some epithet like that.
I own both semi- and revolvers. With a new gun, having that 'tap-rack-boom', sure does engrain the fact that there are a lot less possibilities of 'uh-oh's' with a revolver! With a new semi, you CAN forget just how many shots you have fired, even on the range. A revolver has 5, 6, or 7 shots, period, depending on the design. You learn quick to count them! In both designs, there CAN be trigger-hitting-primer-NO BANG's. There CAN be damaged-in-the-loading-process-cases. Revolvers teach better aiming discipline, and trigger patience. New Shooters using 'high-definition' loads, can pick up a flinch, which is a bugger to let go of! To New Shooters, ALL handguns are heavy. To New Shooters visiting an indoor range, it is a big noise environment.
I would NOT shove a semi-automatic in the hand of a New Shooter. I would ask them to handle a revolver. Whether they have mental images of Tombstone, detectives, Edward G. Robinson on the late night cable movie, there is an almost genetic thing about revolvers. Then there those two outstanding photos of snubnose revolvers in use from the '60's: the South Vietnamese General snuffing out a Communist VietCong, or Jack Ruby shooting Lee Harvey Oswald. Still, powerful images that prove these things work.
Yes, some New Shooters may have watched Sean Connery as James Bond, with his Walther PPK in 7.65mm. Yes, in his Bentley (in the books), he did keep a 'Fitz-style' .38 SW revolver. Instinctive aiming can be acquired, in time. But that can come, with a revolver, easier, once the basics are engrained.
As a not-so-new shooter, I own Browning BHPs. I own SW M-15's. I carried an M-15 series, as part of my duties in Thailand and Cambodia.
What do I suggest? What fills your hand best; What feels balanced when arms are extended; which action can you manipulate, with what body strength you have; what sight picture can you see best - with and without glasses; from table to arms length, can you get that thing to aim; finally, what do you think is too costly for a firearm, or it's ammunition? Then we start from there. ALL firearms are manufactured to shoot better than the human body can align. It is -we- who have more imperfections, than that manufactured piece of machinery called a firearm.
Choose and Shoot well, New Shooter.