Not knowing what exactly you are looking for, don't know how close to your target these thoughts may be - but take them for whatever help they may offer! In general, I've found that bigger churches have a lot to offer in terms of helping people - be it working through issues (like divorce, grief, ...) or having really strong children's programs that are fun. They also tend to have a lot of different areas of service that you can plug in to serve, so that where you serve to help the church can more closely match what you like to do - behind the scenes or in the trenches, so to speak. But you have to really work actively to be a part of a small group if you are going to feel connected to the other people there. Two churches that I know of in your area or close to it are Hill Country Bible Church on 620 and Gateway @ McNeil & 183.
Smaller churches have a greater chance of you seeing more of the same people every week, which may help you to feel more connected. They don't necessarily have the hit out of the park children's ministries, but being smaller your children may feel more connected as they have fewer kids their age to interact with and so are more likely to consistently interact with those few kids. The miniistry needs of the smaller churches may require you to serve in areas that are not your absolute favorite, but that doesn't necessarily mean God doesn't want you to serve in that way in that place. We attend Crossroads Community Church, which is a smaller church (~125 adults on Sunday mornings), our children love it and it has clearly been God's place for us. For us, the WOW is in seeing God at work in the lives of others and ourselves, which we are able to see more first hand since it is smaller.
When you are looking for a church, it is hard - and sometimes the WOW doesn't show up for a while - I agree with AGR that your best bet is prayer for God to lead you where He wants you to be, and then when it has those days of not being so great, you at least have the confidence that you are where God asked you to go.
HTH - praying with you for God to lead -