Well.....
I'm gonna be the wild card and throw in a different recommendation:
If you just want a practice gun, it doesn't matter what type.
If you want to eventually carry it after you recieve appropriate training?
Well, I have my fullsize Glock 17 with its 3 preban mags, and I like it, it's a nice, uncomplicated, proven reliable design as auto pistols go. It's my "house gun" if I cannot access the shotgun( Mossberg 590A1) in time, and I have an appropriate holster/belt for those occasions when I want to carry a fullsize, full capacity auto when " yer insides tell ya to", as John Wayne might say.
But between you and I?
What do I usually find myself carrying when I do carry? What do I usually end up betting my life on?
My .38 snubbie( S&W model 642-2 with Crimson Trace grips).
They're "old school", and in this day and age of high capacity wonderautos, almost nobody considers them a first choice , but you can't beat the particular balance of power, accuracy and reliability in any modern, well made revolver.
Now,granted, talking specifically of snub revolvers and not fullsize ones, any gun that weighs 12 ounces, with a 2 inch barrel, that can be covered with a man's hand, firing .38 Special or .38 +P, can hardly be considered an ideal target gun.
But its balance of enough power, enough lightness and enough carryability is why they're still around in dangerous places and why the model 642 was S&W's top selling gun of 2006.
The Disadvantage of a snubbie are only three as compared to a fullsize auto:
* Short barrel--not as accurate at longer ranges but within the 21 foot or shorter actual combat distance, practice will yield good enough "combat accuracy" in the snubbie.
* Comparatively fewer rounds between reloads--My fuillsize Glock 17 with it's preban 17+2 extended mag, plus "one in the pipe" gives me an on-tap, ready to go capacity of 20 rounds without needing a reload. That *IS* a comforting thought in this day and age of group assaults, and is an increase in "firepower" of 400 percent compared with the snubbie's five rounds. But as the Marines are fond of saying: "One hundred rounds do not consitute firepower. ONE HIT constitutes firepower". And you can't hit with anything you didn't carry.
* Slower reloads--though with speedloaders and the reintroduction in certain models of the old WWI "moon clips" that gap is not so wide as once it was. Not at all.
The advantage of revolvers( but in particular the snubbie) are, in fact, quite numerous to those who will look and study:
http://www.snubtraining.com/pdfs/WhyRevolversBeatAutos.pdf
something to think about.