Definitely skype. Skype is the best than other chatting site because it carry more data from sending time and also its voice call is clear than other site. I personally use skype after that gtalk but i don't like yahoo. Their service is not so good now-a-days though yahoo launch their chatting option first.
yah skype is more better there voice quality is gud and mostly skype is using for business purpose and yahoo for general frds chat
I've been using yahoo for almost 4 years. I never had any problems using it except for its low quality audio. I started using skype a few months ago and I think its better than yahoo. So far I don't have any problems using skype plus its video and audio quality is better than that of yahoo.
I don't really like Yahoo. The UI seems spammy to me. I like skype for calling. Recently, I have started using Vox.io for calling from directly my firefox. Its cheaper than skype and google voice. You guys should check it out.
I prefer skype as its way to easier and simple. Also most business people use skype so we as a service provider use skype
Though yahoo is older messenger than Skype because when i chat through vice chat of Skype it seems very clear to me.
Now skype is become popular. Most of the people prefer skype more then yahoo, Because skype is greater sound quality. so i prefer skype
I only used yahoo for years. Just started using skype few months ago by friends recommendation. I have to say now that voice quality is much much better than yahoo. I prefer to use skype for voice calls now.
I agree with most of you guy, +1 for Skype. However, have you tried Viber on the iPhone? What I like about it is that I don't even have to have it running to receive call. I would love that option in Skype Mobile.