I be not sure which season I like better , season one or two . in season one there be not one episode I do not like . however , there be three that I do not like in this season , but the good episode of this season I think be even better than most of those in the first season . we have a new doctor , David Tennant . and although I would have like to have see Christopher Eccelston in the show for a bit longer , David Tennant do make a great doctor himself . by just watch he premiere episode , you know that David Tennant be the right man for the job . we also have a great companion , the best since Sarah Jane Smith , depart . Billie Piper as Rose Tylor prove to be a fantastic assistant for the Doctor , and now with season two 's finale we see she leave in one of the most dramatic and emotional -lrb- and best -rrb- goodbye there ever be for a companion . and we even get to see a small return by Elizabeth Sladen as Sarah Jane Smith and the lovable robotic mut k9 with John Leeson protray he voice . episode include : the Christmas Invasion -lrb- five star -rrb- New Earth -lrb- five star -rrb- tooth and claw -lrb- five star -rrb- School Reunion -lrb- four star -rrb- the Girl in the fireplace -lrb- two star -rrb- rise of the Cybermen -lrb- five star -rrb- the age of steel -lrb- five star -rrb- the idiot 's Lantern -lrb- four star -rrb- the impossible planet -lrb- five star -rrb- the Satan pit -lrb- five star -rrb- Love & Monsters -lrb- two star -rrb- fear she -lrb- one star -rrb- Army of ghost -lrb- five star -rrb- doomsday -lrb- five star -rrb- in all , a great epic season that I highly recommend !