Ionic is from far the more mature.
The platform is here since few years now, and now shipped with all the tools you could need for development, deployment, debug... etc. Plus it is based on Cordova, which have been around here since 2011!
React slowly but surely make his way to a better tooling, but since it is relatively new, you can't expect the same maturity as ionic.
I've never done apps with Meteor, but it must be pretty powerful in combination with a meteor backend! Not sure about the tooling here, but if I remember well, it is quite young too.
If you want a stable and mature platform for developing your app, go for ionic, it is your best pick here.