An easy way to manage comparison tables?

Does anyone know a good way for creating and managing comparison tables in MODx. Something along the lines of what this page describes using a Wordpress plugin: http://www.nichepursuits.com/the-utimate-guide-to-creating-a-product-comparison-table-for-your-niche-site/

Or how sites like http://www.compareninja.com / http://www.pricerninja.com make it a word processor like experience.

I could personally hard code the HTML into a resource's content field pretty easily, but I need a template-able, and fool proof way for the "site owner" to enter the necessary data into a MODx resource and have these kind of tables look perfect without knowledge of HTML on their part. Know what I mean?

This is Modx, so there are likely many ways to do this. For the backend, I would use MIGX. You can set up a data entry grid almost exactly the same as the Wordpress example you referred to. It's a bit daunting to get started, but once you work through some of the tutorials (example: http://rtfm.modx.com/extras/revo/migxdb/migxdb.tutorials) you'll realise how powerful it is.

For the front end, I'd probably buy or find a suitable free pre-packaged comparison table and modify it to incorporate the backend data saved using the MIGX grid. Have a look at this tutorial: https://www.gelstudios.co.uk/blog/2013/10/modx-migx-db-tutorial.html - it covers backend and frontend display really well. Hopefully that will give you some ideas.