I would be OK with a limit on the total number of mechs to go along with a tonnage limit. That would help a bit with 'spamming' lights at an enemy. I would also be OK with players bringing less than the maxium number of mechs in order to bring fewer, but larger, mechs. From my perspective, I am OK with a player deciding they want two atlases instead of four hunchbacks if that is what they prefer. I don't expect Tonnage limits would be perfect, but they do allow players to have more control over what they bring to a fight.
Either setup, 1/1/1/1 or tonnage-with-min/max-mech-limits, is going to be a bit brutal to new players, or players without a large selection of mechs in their garage. I have enough IS mechs that I can probably cobble together a valid drop ship without using trial mechs regardless of the faction or other limitations. I'm close to that on clans, but don't have any lights and only one type of assault. A new player with four (or even a few more) mech bays is almost guaranteed to be forced into using trial mechs, no matter which system we end up with. They simply are not going to have enough mastered mechs to build a good drop ship from only owned-mechs.
However, I feel that tonnage limits will allow new/low-mech-count players opportunities to use MORE of the mechs that they do own than 1/1/1/1 would. Everyone starts with 4 mech bays, and you need three variants with basics to be able to master a mech, so it seems likely most people end up with two or three variants of the same mech in their garage to start with. PGI probably has real numbers on this, but it seems logical that a big percentage of new players are going to have two or three of their first four mechs be variants of the same mech. We all know how important eliting mechs is, so I would rather use a system that allows new players to use the two or three variants of the same mech that they own and might actually have some efficiencies unlocked on. You could allow that with tonnage limits, but with 1/1/1/1 you are more likely to force them into using additional trial mechs because they can't use two variants of the same mech.
New players will still end up using trial mechs no matter what, but it seems like 1/1/1/1 is going to, overall, force them to use more trial mechs than tonnage limits will. That doesn't seem like a positive thing to me.
Edited by Maxx Blue, 26 September 2014 - 12:15 PM.