Blizzard,Thunder,Fireblast fail in comparison to ice beam,thunderbolt, and flamethrower,you can do decent damage risking only 25 power +15pp and 100 acc> 5 pp and 75 acc
Though thunder is different as its 10 pp,thunder is the best out of fire blast and blizzard because it can be made 100 acc using rain dance and has 10 pp,blizzard really sucks as in double battles,you miss a lot and if you do actually hit,all it does is 60 damage(it hits both so its power is split