+ power is better when you need to overcome an enemy with a significant advantage in attack power, since it will be easier to erase/equal the atk of the opponent. - power is better in situation of pure power, since cards that usually have - power is also low on power themselves or have a high minimum ( except for spyke ). Cards that have both power and atk manipulation are great walls because they force the opponent to overpill to overtake them ( eg nellie, mona, oscar )
Proper grammatical usage of emoticons dictates that they should always come after exclamation marks, to eliminate any confusion as to whether the punctuation is part of the aforementioned emoticon. Also, an excessive amount of exclamation points should always be punctuated intermittently by a "1" or "11", as an indication of the author being so overwhelmed by excitement that his/her finger has momentarily slipped off the shift key.
While such subtle distinctions may seem trite to the average poster, only proper grammar can assure that your post be taken seriously.