You're talking about the 24 hour (so to say) idea, but it can't be canon if you consider
Aliens, so...
QuoteI like the Queen idea but i also think the egg-morphing is a awesome idea. When the Xeno don't have any eggs or a Queen around he can grow his own friend
I've always thought that both could work together. The Queen would be the normal way of doing eggs, and the egg-morphing, the "emergency way". An alien that would not sense a queen in the vicinity could resort to this possibility in order to perpetuate its kind, but it would not be a normal process and it would require, I don't know, extra "power". I like this idea better than the transformation of the usual drone into a queen (it's easier, and maybe too easy).
The problem, if the Queen is the only one able to produce eggs, is that it lessens a bit the destructive significance of the xenomorph. If we have only in mind the first movie, one xenomorph alone is able to wreak havoc, which means one egg can be used discreetly so as to produce massive damages in good conditions. It's a bit harder when we take the Queen as sole progenitor. By the way, if the SJ are the creators and used them as weapons, they launched hundreds or thousands of eggs on a target, but I think of more localized targets and "infiltrations", of the kind that the Company or the military from AVP R could have done with xenomorphs.