I'll second Tucohoward - Gunze Sangyo are my favourite paint, without question. Spray beautifully and, I think, very easy to clean.
HOWEVER, i note you say that Tamiya Acrylics are a pain to clean from your airbrush. I would say Gunze and Tamiya are very very similar in many respects, save for their brush painting ability.
If you think Tamiya are a pain to clean, then i think you'll find the same with Gunze.
IMHO, i find Gunze and Tamiya the easiest paints to clean from an a/b.
In terms of odour, yes, they still have one, but i don't know of many paints that don't.
No idea of toxicity, haven't really read or researched much into this myself, so i can't comment.