>>25224255>no tutorsThat's exceedingly common for first games of a gen.
>no replayable contentEverything's replayable. What do you mean by this? There's postgame in all the areas you get to go to after E4 (whole east portion of the map), rounding up the remaining sages, black city/white forest, battle subway, competitive/breeding (as always), and, hell, actually beating the real champ.
>no good surf usersSeismitoad, Stoutland, Samurott, Jellicent, Simipour, Swanna, Carracosta, Alomomola, Haxorus, Bouffalant, Beartic, Stunfisk, Druddigon, Basuclin: none of these are good enough for you?
Want me to pick for you? Go with Swanna: fast with decent attack stats, and obtainable as a Ducklett right before fighting Clay.You can even use Ducklett against Clay to better train it for when you use Swanna.