why would you be taking a 4 lascannon
dev unit they are horrendously expensive, whats more likely to kill them are the 50 point attack bikes or the melta guns all over the place. people arent using that many points to kill them and thats the problem you should be looking at melta guns as a threat lascannons don't really kill tanks very well this edition compared to a melta variety weapon
and the prevalance of melta weapons in pretty much every book are far cheaper and more effective at killing soulgrinders.
space marines have combi meltas on pretty much every unit and failing that they have cheap speeders and attack bikes with multimeltas and even just bike units not to mention
bs 5 characters with meltas coming out of rhino's or drop pods, or everyones favorite sternguard out of pods with combi meltas
chaos marines have meltas out of every orifice possible 5 melta chosen units outflanking or 5 melta havok units not to mention the 5 point combi melta on terminators and the
bs 5 melta on their characters, and bikes and raptors all have melta
eldar have fire dragons, fusion gun autarch haywire grenades,
tyranids have any monstrous creature killing it pretty handily in combat not to mention rending in piles of places to get it
sisters have melta all over the place too
imp guard have melta 4 a crack out of 5 man suicide squads and all over the place, not to mention demoliser cannons
tau have melta guns too (i forget what they're called) out of deepstriking units and theirs can hit on 2's also they also have emp grenades, oh yeah and that little railcannon gun
the point is there are far far too many ways to kill a soulgrinder that are reliable (not 4 lascannon devastators) and at the worst are equal points but in almost every case are far far fewer points than a grinder
don't forget every melta gun only needs a 5 to glance and a 6 to pen (assuming close range) on TWO dice, and then has a 50% chance to kill a grinder and those aren't odds that I like
even taking into account a unit of marines rapid firing screamers (assume 10 bolters since its easy and any special weapon other than a flamer (which is hard to get an average) will only get the same wounds) will hit 14 times and wound 7 times, wich translates to 3.5 dead screamers dropping a unit of 15 to a unit of 11, which is still more than enough to kill a tank, and has far more dice than a grinder still.
this is also not taking into account the usage of terrain, I can hide screamers behind terrain in most cases, where can you hide a soulgrinder? Hell where can you hide a grinder so it gets a cover save? the thing is gigantic (which is awesome its such a cool model)
either way people obviously have their own opinions on what's good and what's bad, such as you and I do. And everybody should decide for themselves which option they like better, and which option fits their playstyle. What people forget is that every unit in every book is good somewhere in some situation for somebody. It all depends on how you use them and wht your playstyle is. The only way for that to happen is for people to get out there and try it for themselves and form their own opinions.
It would be beneficial to the community at large for remembering this and not telling people "this unit is dumb or that unit sucks" and trying to be open to new ideas, and new styles of playing (I'm just as guilty of saying this sucks as the next guy, and for that I apologize.) and if people would remember to think that way it would make the community just that much better.
So since this thread is starting to sound like a stelek shout down, I will have nothing further to say on this subject, instead I'll let everyone else TRY it for themselves and decide which they like better. Everyone is welcome to have as many last words as they wish