I have a Gabriel, and while I have been surprised by the number of people who have pronounced it Gabrielle, I have absolutely no regrets, it is a beautiful name and I can't imagine him being anything else.
I have a name that is constantly mispronounced (Irish) and it is not that big a deal to me. Also I have had loads of really positive responses to it, many more than I was expecting actually, as I accept that we all have different taste when it comes to names. I considered the name carefully of course, and though DP was hesitant at first he now completely agrees that it is a fantastic name and he can't imagine DS having another. I had a passion for the name, nothing else seemed to have the same impact on me, and I hope that's a good enough explanation for DS when he's older.
I am glad it is becoming more popular, the more the merrier!