if i really had to get rid of one, i think i would have to keep the .............. really hard because they are both good just in different ways, the ultralight as it is more like a single, however if you don't mind tandems then the ergo is great really big shopping basket and you can leave the back seat semi up for laods of shopping and child can still stand on the back. i have the older ultralight with only 2 reclines [hardly any recline at all] but the new one has 3 reclines but i can not but wonder that it would stop the child in the back from sitting down when the front seat was reclined, the ergo has a larger space between the back of the front seat and the back seat which is more of a shaped seat rather than a bench which is why it is longer, i am not used to pushing a long pushchair anymore, but am sure i will get used to it again over the summer holidays. i do not have the seat cushion on the front seat, when i asked joovy for a shipping price the man could not find my postcode on his system said it did not exist, i must live on the moon, at the moment i have a seat liner onit which does the job, but will try again if i start using it alot. i will measure the hood height but i think the ergo will be higher, but both have really good head room,