New to minivan life.. Sienna vs Odyssey

So going thru Autotrader and flipping back to Reddit. I keep hearing about the Odyssey Transmission, 9 trans vs 10 trans speed.

By comparing the Sienna vs the Odyssey.. it seems that the Sienna has more reliability vs the Odyssey..but i really do like the Odyssey due to the features. Leaning more towards Honda.

Can someone go more into detail in regards to the transmissions.. which yr and trim to stay away from. Thanks in advance.