They are both fine. In my experience, my Beretta has been more reliable than my browning was. I used to have issues with federal top gun ammo in the bottom barrel of my Citori because a) the primers seem to be seated deeper than other ammo and b) the bottom firing pin on the browning does not seem to strike as far or as hard as my beretta, as I have never had this issue.
The berettas are definitely lighter, which in my opinion is not a real plus when you are looking at 28 or even 30" guns. I shoot a 32" 682 Gold E, and to me, it feels about the same in my hands as a 28" citori. I have shot some 28" berettas, and find them a shade light for me.
The nice thing about Berettas is that the aftermarket parts / service seems to be stronger. I just got back from Cole Gunsmithing in Maine, and there is nothing those guys cant do, fix or supply!
At my club, when I started shooting there 10 years ago, the citori was king (325/425/525/XS). Now, the rack is full of 682's and DT10s. I think that has been mostly driven by price and availability in the market though.
Bottom line, I don't think you can go wrong either way.