Since you don't seem to have any brand affiliation, have a look around take a few vehicles you think you might like for a test drive.
Talk to other people you know who already own in the segment you're looking at and ask them what they do/don't like about the model they have. Be careful when you analyse their responses as some people won't tell you they bought a "lemon".
Make a list of things that are important, for example
- fuel economy
- number of seats
- luggage space
- physical size - will it fit in the garage and or be easy to park
- ease of access for entry and egress, including how far the door opens and the opening size/shape for getting items like kiddies car seats in and out
- will you want to tow a boat or trailer
- automatic/manual transmission
Think about features you may want for example,
- reversing cameras (most vehicles have these today)
- electrically adjustable seats
- seat height adjustment
- adjustable height shoulder retainer for the front seat belts
Little things to think about
- Do the electric windows stay powered for a period after the key is removed? It's a real pain to have to reinsert the key and turn the ignition on just to close a window that is partially open.
- Does the reversing camera show a curved path when turning while in reverse
Finally does the the vehicle feel right when you drive it? Are the controls like the indicators, high/low beam, windscreen wipers, heater/climate controls easy to reach and easy to use?