We have the Happy Trails pink and it holds all 3 of my girls (3, 5 and 8 lbs.) They have plenty of room in there. We prefer the 4 wheels as the 3 wheelers can tip over easier. We like the sturdiness of the 4 wheels. It is nice to be able to take them places when it is crowded and have them all in one spot safe and sound.
it does come in royal blue too.
Good luck in your search. I am sure any of them would be just fine.