It's so hard to evaluate something like this trying to be even remotely objective, after actually having had a blast. That's why I just won't. For me, a rating of 4.5 in this case indicates that aside from minor (yes, hear me out) flaws I felt exactly like I thought was supposed to: well entertained.
I wouldn't call it surprising that 'Battleship' is dumb, predictable and not as seldom devoid of any logic. It is also quite flashy and loud.
BUT - and that's a big one for sure - as someone who rather regularly likes him some good 'ol fashioned eye candy without wracking his mind about every of the protagonist's very moves, I can honestly say that I enjoyed the shit out of this one. Once in a little while, I get along with mediocre acting, rather worn out stories and hollywood clichées en masse, as long as action, directing and sfx make the whole thing worthwhile. I won't even explain any further, but for me, that's where 'Battleship' delivers exactly what I expected it to: crazy ass explosions, stunnig visuals and a sense of humor that does not come over as masturbatory as a certain Mr. Bay likes it to rub in one's face - which admittedly might not be the best choice of words, but you get my point.
Actually, I laughed quite a lot, and neither was I the only one, nor did it feel unintentional, for the movie hardly takes itself any serious.
Of course could I begin listing specifics that I liked (Liam Neeson, as always), but what for? In the end, those won't tip the scales for whether one likes this or not.
Bottom line is, if you enjoy brainless action with a neatly crafted mixture of jaw-dropping shots, beautiful settings and a fitting soundtrack - obviously, think 'Transformers' -, this is a no brainer. To anybody anticipating something deeper I politely refer to the trailer: this movie is exactly like its preview suggests. Nothing more, nothing less. Arthouse aficionados, you have been warned.
Besides... they actually do 'play' Battleship. How awesome is that?