It would be more prudent for people to hear specific IEMs before judging or comparing them. Both have great bass quality and are pretty neutrally tuned in the bass meaning not elevated. Ragnar has the far better treble and is very treble dominant. Treble tuning gives it a huge stage. It is also the most resolving and clearest sounding IEM I own. It makes everything else sound veiled in comparison including Jewel and Traillii. Odin is upper mids dominant with good treble air, but thin treble in general. Odin's strength is its bass. Ragnar's strength is its treble. Gloriously detailed, thick and revealing treble. Odin has better timbre, but can sound incoherent. Ragnar has great coherency.
To me, Odyssey is a better Odin because it is tuned to highlight its glorious bass by elevating it to where it belongs and balances out the rest of the curve to make its tuning very pleasant. Ragnar is something completely different.