If The Kings Wanted to trade Gravel, yes he would net a better package.
but this is a subjective opinion, yours will be different than others. this is why all of this at some point is a "guessing game and gut instinct". in order to get past this, we have to look at and study the body of work each player has presented.
i have to see McNabb play yet, but i've seen the other two. on paper and based on results i would say McNabb is ahead of Gravel. he already has 30+ NHL games under his belt and named an AHL all-star twice.
Gravel has yet to play even in the AHL and be measured against the next tier of players he will compete against. we can't judge Gravel's performance to date to McNabb's because Kevin is playing against a totally different (lower) level of competition. Kevin is playing against a lot of players that won't even make it to the ECHL level, let alone the AHL or NHL.
this is a significant gap when it comes to judging one players performance over another's based on performance. McNabb has already stood out among his peers in the AHL. Kevin stands out against NCAA players.
i like Kevin's game, don't get me wrong. i look forward to it, but to say he is further along than a guy that has NHL experience and an all-star in the AHL doesn't make sense.
Gravel will have his up's/down's when he takes the next step. McNabb has faced these already and is now trying to overcome the obstacles facing him at the NHL level.
Gravel also will be a year behind Forbort. will he surpass and learn faster than Derek when he gets to MAN, once SCSU closes its season? time will tell, but Derek has now faced and played almost an entire AHL season. Derek has been playing against men that are professionals. Kevin is still playing college kids.
until Gravel steps out and plays for MAN, i rate him behind McNabb and Forbort. for the same reason we all see the arc of development these young kids go through at D. we only have to look up top at Muzzin and the on going struggles he faces nightly, adapting to the NHL.