No not really. If you look at the rifle chambered in each round I would lean toward the Lapua anyway. Not a fan of the Wby MkV so that one would be off the table in my opinion, far to expensive for what you get on average.
All three rounds are chambered in the big Sako rifle. I have shot them all and all shoot very well in this rifle. Still, the 338 Lapua is on averge far easier to develope true match grade ammo for.
At ranges under 600 yards, the big 30 cals will have a slight advantage in trajectory because of the higher velocity potential but when loaded with a bullet like the 300 gr Wildcat ULD RBBT or 300 gr SMK, the 338 Lapua is ballistically superior at 1000 yards and out.
Actual bullet drop may be similiar but remember its wind drift that will cause us to miss far more then bullet drop errors. The higher the BC the less wind drift, the 300 gr 338 wins in this catagory.
Also, recoil of the 338 Lapua is milder in my opinion then the other two. In reality it may be a heavier recoil but it is a much slower shot to the shoulder then the big 30 cals which often produce a very intense Slap to the shoulder.
With a brake this is a non issue of course.
Of the three, only one was designed from the ground up to produce extreme accuracy over extreme range, that one being the Lapua.
A more cost effective way to get identical performance is the 338 RUM. Brass is not as good but I have built several of these rifles that will run toe to toe with the Lapua in velocity with same bullet weights and alsohold extremely tight groups in a custom rifle
Another option is Shawn C.'s 338 Edge(338-300 RUM) A bit more performance but again more cost effective to get brass for.