In my own personal experience Chikorita, but that's only because I prefer fire types.
A table has 'Cyndaquil-easy ,Chikorita-hard ,Totodile-moderate' writen on it. Cyndiquil evolves at level 14, Then Quilava evolves at level 36 into Typlosion. Chikorita evolves at level 16, Then Bayleef evolves at level 32 into Meganium. Totodile evolves at level 18, Then Croconaw evolves at level 30 into Feraligator.
It is in the beginning of the game when you are entered in Prof. Elm's Lab. If you chose Totodile your rival chooses Chikorita, but if you chose Cyndaquil your rival will choose Totodile. Other wise it'll be harder to find without those requirements, besides trading.
Pokemon Soul Silver is not harder than Heart Gold because they are the same game but they have different pokemon.
pokemon white is hareder than pokemon black
Deoxys...
only when you get the national pokedex which you get when you have caught 60 pokemon. then go to prof. oak and he will giv u the dex. THEN the elite 4 gets harder
catch em yourself.work harder.
Pokemon ranger 2 is easier because it has a health meter however Pokemon ranger 1 you have to make combos so it is harder but more challenging and fun. But still I would recommend Pokemon ranger 2
try harder
PWT
Moltres is a legendary pokemon all legendary pokemon are harder to capture.
You can beat the Pokemon League it is just one of the harder Leagues than in Pokemon Emerald or Diamond.
increases evasivenes. i.e. make it harder for you to be hit