My husband convinced me to get a Kia Sedona when our second dughter was on the way...I haven't looked back since!!! I wanted an SUV so BAD but he had me test drive the van and I LOVED it.
It did take a little getting used to driving a bigger vehicle but now I hate driving a car and feel much safer in a van.
One of the best parts of the van is being able to kneel on the floor when trying to buckle my kids or get the baby seat in. It's very easy for my kids to get in and out on their own too.
Also, we have used out van to move everything from a grill to a sofa to a large queen bed! Most van's now come with stow and go seating allowing you to flip the seats under the floor eliminating the need to remove seats.
I love love love my van. A good friend of mine drove an SUV for years. She recently made the switch and wondered why she didn't lesten to me sooner!
The blind spot has not been an issue for me. I still look before I change lanes. I have always used my mirrors and looked so that wasn't an issue for me. The only thing that scares me about a taller vehicle is backing up. I try to back into parking spaces as often as possible...especially if it's at school whre children are present. I am always on HIGH alert making sure no one is behind me. If it's possible for you, get a feature that has a rear camera or some sort of signal that lets you know if something is close to the rear of the vehicle.
Congratulations on your next little one, and good luck with your choice =0)