If you want to stream with the best video quality try the new H264 technology. This is the newest release codec and there is a 15-20% improval in terms of image quality.
Video compression (or video coding) is an essential technology for applications such as digital television, DVD-Video, mobile TV, videoconferencing and internet video streaming. Standardising video compression makes it possible for products from different manufacturers (e.g. encoders, decoders and storage media) to inter-operate. An encoder converts video into a compressed format and a decoder converts compressed video back into an uncompressed format.
I think the biggest advantage of H.264 over previous standards is its compression performance. Compared with standards such as MPEG-2 and MPEG-4, H.264 can deliver better image quality at the same compressed bitrate or a lower compressed bitrate for the same image quality.
I can show you some demos if you are interested.