Note that Quince also has errata to add “limit: 2” to his “Arrives:” ability.
90% of the time, Glaxx is just Iron Man, so I would always reach for Argonaut first, unless I was playing against specifically black starter, and it looked like the only unit(s) I was going to control at some point were Glaxx and/or Hardened Mox.
Or as part of a self-inflicted Judgement Day, Maximum Anarchy, or Rewind shenanigans. I haven’t seen it pulled off yet, but that could be something to explore.
The Quince / Glaxx interaction is too slow to be a viable strategy. But Quince / Omegacron is very, very scary.