No idea about the first 2 but supposedly Highschool of the Dead is supposed to come out next year. Highschool DxD had a new season in the summer and it finished like a month ago. Personally I liked Heavens Lost Property, Infinite Stratos, Freezing, Kiss x Sis and Sekirei. Heavens Lost Property actually has a plot and follows through and it's extremely popular with 2 seasons, and soon to be 2 movies with one releasing in 2014. If you ever get the chance check out Gintama or the Monogatari series, both are really good.