There have been common Hollows that are humanoid-shaped. It's not just the aspect of being humanoid-shaped. It's also the matter of being the appropriate size and just how human it appears.
In case you haven't noticed, some of the Arrancar who have been revealed in their Adjucas states have also had humanoid shape, with the exception of having tails, wings, claws and the likes. Thus, humanoid shape =/= Vasto Lorde. Size and increased human aspect is also something to consider.
Ichigo's Hollow form has claws and a tail, and while it does seem likely that it might be a Vasto Lorde type, it could also just be a very powerful Adjucas.