Comparing Axio G with Altis:
First you need to outline what's more important to you, i.e: build quality, comfort, fuel economy, resale etc. Let's talk about build quality first, in this case, the Axio takes the cake. Next comes comfort, in terms of comfort, the Altis is better than the Axio. The fuel economy of an Axio is much better than that of an Altis because of the CVT transmission. I'm not really sure about which car has better resale, but I think that both cars are about the same in terms of resale. Now comes features, first we are going to talk about safety features, both cars are about the same over here, but the Axio has more airbags (5 or 6 I guess, not too sure), while the Altis has only 1. Now comes other features like push start, the Axio has it, but to compensate that, the Altis has cruise control. The Axio also comes with climate control, while the Altis comes with rain sensing wipers. Both cars have GPS installed. The Axio also has an immobilizer to deter would be thieves while the Altis doesn't. Now comes engine, the Axio has a DBA-NZE141 engine while the Altis has a 2ZR-FE engine (not too sure about it). The Axio has a CVT transmission, while the Altis has an ECT transmission.
In my opinion, the Axio is a better option in terms of features and economy, but the Altis is certainly better in terms of looks and is a newer car. But you must know that both of these cars pretty famous among thieves and hence could attract unwanted attention towards your car. By the way I would advise you to buy a Honda Civic Reborn instead since it has a sort of a balance of features and is not as famous among thieves and you might even get it cheaper than an Altis or Axio.