I sugest you train on flesh crawlers. The are level 35 in level to of stronghold and they give the fastest xp on runescape f2p im pretty sure.
Lesser demons at karambja volcano, they are level 82, but they should pose no trouble for you, bring some lobsters and you should be a-ok.
you should train on somthing around your level and gives fair drops
You should train on Range.
It's level 50, you should get a higher level (something like level 57) because it can regain health with leftovers
his highest level Pokemon is 88 level pikachu, so train around his Pokemon types. i say legendaries!
hmmm that's hard im non mem lvl 57 but anyway if your talking about combat i would say probobly something in its 20s like the skeletins in the sewers
For BEST results, you should be about level 55. when i beat it mine were level 57 and above, cynthias garchomp is lv. 62!!
the best place to train your ninja is bixie hive.i still train there even though i am over level.
Yo momas house
train on level 3 cows
Just keep training your creature and you should get there. Good Luck!Quest its the fastest way to level up. Train every other level until you hit 60, then train every level.There are great websites with leveling guidesTo add to his answer i can definitely tell you the best way to train at level 15-57 is questing while in que for a dungeon. At level 58 head to Outlands and quest. At 68, jump on over to Northrend to get to level 80.If you have an 80 already, save up some badges or Stonekeeper's Shards, buy some BoA gear of the appropriate type. It will help immensely.
Champion Steven has a level 57 Skarmory, a level 57 Claydol, a level 57 Aggron, a level 57 Armaldo, and a level 59 Metagross. In the rematch, he has a level 77 Skarmory, a level 77 Claydol, a level 77 Carbink, a level 77 Aerodactyl, a level 77 Aggron, and a level 79 Metagross.