They're not really that similar, but they are both very desirable knives, no doubt about that.
The Boy's Knife is all steel, my versions are Barehead (my preference) and they have quite a small bolster. The result is a knife which is robust, has a very decent Clip blade - first class handle to blade ratio - and is slim and not heavy. My scale shows 50 g for this one. It is certainly an attractive knife and nothing undersized or 'junior' about it.
I have a Queen 41 but it is a liner lock version so this will add weight. My scale reads 74g for this but if it is the completely slipjoint model and not the combo, it will be I suspect, 10g less. Still heavier than the Boy. It has two sturdy bolsters and as Jeff remarks, the Copperhead bolster means no tang ripping up your pocket. Moreover, it afford some extra protection when gripping-almost impossible to slip onto the blade. The liner-lock gives added reassurance when needed. Brass liners, thick jigged handles and a very fine Clip blade in D2 which, once you sharpen it, is a dream cutter. There is a burly tank like aspect to this knife despite its relatively modest dimensions.
The build quality of the Queen I have is actually higher than the GEC-the latter is very good indeed no raised or sunk springs on open or close, centre blade but it does show some very tiny gaps, I mean tiny too. The Queen is frankly superb and that is my experience of their D2 range in ACSB really beautifully made knives, none better if you get models from 2000-2008 in particular.:thumbup:
As we always say, you need both of these excellent knives simply because they are very different in character from each other. I would not like to lose either of these knives or want to part with them, that speaks volumes...
Thanks, Will