Hi M.,
From what alot of people say, boys are slower at the potty training than girls. I personally think that it depends on when the child is ready, regardless of boy/girl. My daughter was doing #2 since her 2nd bday and it took her about another 6 months before she consistently went #1. We used the pull-ups to make her feel more like a big girl and giving her the stickers. But I think that they didn't really help. So we got an Elmo potty video. She watched that about 4 or 5 times and it started to click! She started to go #1 more consistently. I was also home with her for a week in between Christmas and New Year's so I would try to put her on the potty every hour or so. We told daycare when she went back after the new year about her progress. They worked with her by taking her every so often and she finally got the hang of it. Now she loves wearing her Dora and princess underwear :-)
Again, I think it depends on when the child is ready. For my daughter, it was like a switch finally went off in her head and they key was that she was able to tell US when she had to go #1...not us tell her. So she felt like she was in control ;-)
Hope this helps!