Best Instant Messenger Client

Ok, so my laptop crashed a couple days ago and wiped all the data and had a clean OS installed, and when it came up to what Instant Messenger(IM) to use I had doubts, so I did a little research, maybe it will help someone:

•   Digsby - this a relatively young IM app, but it is really cool, and it has a lot features like integration with all the major IM services (i am not gonna mention them all here, you know them anyway), email notifications, social networking (Favebook, MySpace, Twitter, LinkedIn), customizable appearance and notifications, one more really cool feature that I liked is that it offers synchronization between PCs and installations, and of course the ability to place a widget on your blog or website is really cool and useful.
•   Pidgin - cross platform, open source available for Windows and Linux IM. Actively supported and developed by users. As well pidgin is extensible, so this is a real gem who loves their IM super customized with all kinds of plug-ins. But it gets some bad points due to bugs and developer quarrels.
•   Miranda IM - my favorite   up until recently. Miranda is really resource efficient, so if you have a slower PC this definitely the best IM to go with. Additionally, with the choice of hundreds of plugins, icons, sounds and other content, Miranda IM gives you the ability to modify, customize and extend functionality to make it your own.
•   Trillian - if you would have asked three years ago, there wouldn't have been any competition, but in the recent years Trillian has lost a lot of users because the new development of Trillian Astra has taken too long and just recently they released a beta version. Non the less it is still promising and they promised a MAC and iPhone releases as well, just keeps me wondering how long it will take them :).

 

Some other IM clients that I looked at but didn't include to the post where Meebo, Adium (probably the best IM for MAC OS X ), eBuddy. So and which one did choose at the end of the day? Miranda IM is still my favorite :)) What is your favorite IM client?