This is one of my favorite songs by CircusP, EmpathP, and that uses SF-A2 Miki. The English is really great for an advanced Japanese voice bank. Only a veteran tuner can pull that off. The art is kinda wonky though.
This is my favorite song using Tohoku Zunko, one of my favorite Maika songs, one of my favorite Hatsune Miku songs, and one of my favorite CircusP songs. This song is freaking awesome.
This is one of my favorite CircusP songs as well as one of my favorite SF-A2 Miki songs. It may not sound like it, but this song is extremely deep and well-written. Some very valid hypotheses can be found in the comments.
This is my third favorite 40meterP song. It's unique and iconic within in the industry as far as I can tell. It's also one of my favorite songs featuring Hatsune Miku.