Just musing. Not trying to claim anything as a fact, I know there's many variables to consider.
Statistically speaking, and depending on how you read the stats, Maynard is just behind Doyle in terms of getting shots on target*. Maynard has had fewer opportunities to score, but has also played around 25% fewer minutes. If we adjust for that, Maynard would be on around 13-14 goals.
Yates, who is joint 2nd, has had fewer shots on goal and a lower accuracy than Maynard, but has scored the same number of goals as Maynard. Having said that, Yates has played more then Maynard has. If Yates was in Doyle's position, he would probably have had more opportunties... and more goals.
Below that we have Lubala who, despite having played the most number of minutes of the top 5 goalscorers, has scored 9, making him look a bit crap in comparison. Vaughan could easilly be a 2nd joint top goal scorer.
*I think the shots on target statistic is likely a bit misleading; one could have a hopeful punt from distance and it will still count as being on target.
It's difficult to say how any of these stats will play out should the other 4 be playing as a poacher like Doyle is. So, to summarise, these stats tell us bugger all... other than the ginger Pele is god. FUCK YEAH!