Hehe, I always end up posting this in typing threads, because I see it in all typing threads.
"Type 1 hits X better than Type 2"
The above can be the truest thing in the world, but it is sadly not a very good argument to decide whether a Pokemon needs to be Type 1 or Type 2. The reason is simple: CAP11 can be Type 1 all it likes... it doesn't stop it from having moves of Type 2!
The only difference is that the Type 2 move would then lack STAB, in which case I ask: is this really a limitation? I'm fairly sure that the majority of moves used in Pokemon games do not have STAB. Tyranitar uses Earthquake pretty well. Most Water types use Ice Beam quite well. Hidden Power is the epitome of "move that does not (usually) get STAB but is very useful despite having a measly 70 BP".
So don't worry if your type doesn't win and you want moves of that type... it could well happen that it will still get them! :)
"Type 1 hits X better than Type 2"
The above can be the truest thing in the world, but it is sadly not a very good argument to decide whether a Pokemon needs to be Type 1 or Type 2. The reason is simple: CAP11 can be Type 1 all it likes... it doesn't stop it from having moves of Type 2!
The only difference is that the Type 2 move would then lack STAB, in which case I ask: is this really a limitation? I'm fairly sure that the majority of moves used in Pokemon games do not have STAB. Tyranitar uses Earthquake pretty well. Most Water types use Ice Beam quite well. Hidden Power is the epitome of "move that does not (usually) get STAB but is very useful despite having a measly 70 BP".
So don't worry if your type doesn't win and you want moves of that type... it could well happen that it will still get them! :)