Hi dude to be short and sweet I'd say don't go with Joomla, it's okay but you have to add a lot of nuts and bolts on to it than you do with WordPress to get the best functionality and use from it. Both have their pros and cons but WP comes up trumps for ease of use and compatibility etc. However.. it all totally depends on what you want to achieve you know!? While WP can be used for a lot of things that make use of a database like a shop, forum or blog etc. You can do a lot more with it like all of the above and run a community on it. But you might be better off looking at other platforms or even making your own depending on what it is you need. If it's just for a blog, but you're confident it will be a project you wont abandon later on if you grow bored of it whatever then go with WP as you can't go wrong! Besides, what's the worst that could happen? That's what backups are for!