There are loads of classes I like...Sorcerer, Cavalier, Kensai, Archer, Barbarian so I don't have any one particular favourite, but I know what my favourite race is...........DWARVES!!!
These little guys rock! For the sake of sacrificing one point of AC and a little charisma, you get a bonus CON score and therefore more HP, infravision and above all, +5 to saves vs death, +5 to saves vs wands and +5 to saves vs spells. Priceless!