kk guys - I actually was online and actually did a comparison of two main concepts from posts in this thread.
3 boxing Assignments versus Spawn Farming, with proceeds from Tokens/Beacons not yet accounted for.
Assignments : I ran LvL 5 combat with my T4 solo rigged Gropho, and LvL 5 Xport with two Argano's. Yes, there is efficiency to be had because two acct's are auotpiloting while the third is whacking NPCs or scanning or something, thus ameliorating the travel time issues. But, you have to get through the first 5 assignments to get the max income buffs. That would be trivial if amortized over 100 assignments. Trouble is, at the 10th iteration (30 total or 10 each for 3 acct's) I could do no more. I was burnt out on assignments due to shear boredom. The good news is that the NIC and tokens flow in like clock work.
Spawn Farming: set up my T4 Gropho with two active racial hardeners + ECCM and used two RivelReppers (one a basic T1 and the other a real repper maxxed out with T4). With this set up I can pull the entire field as fast as they spawn and farm non stop. The only break in the looting is respawn rate and the occasional need to collect the loot with the wimpy Riveler. So besides many T2 and some T3 mods, the plasma collected is worth crap loads of NIC - way better than the cash from Assignments. In the current market, I am unable to sell anything - and I'm not kidding. So it's very hard to say what the loot/recycling is actually worth.
Bottom line : comparing the dependable income+tokens with plasma sales --> Spawn Framing wins hands down on an hour by invested hour basis.
Now trying to compare tokens versus loot is even harder because it's all market driven, hence highly variable. So the answer is : buy beacons with the tokens and acquire/sell even more plasma !!! This is what I have not tested out yet but I suspect will turn the tide in favor of assignment running, assuming you can handle the boredom. Using beacons from assignments make it a hybrid endeavor, some basic cash flow from rewards, but loot/plasma from beacon whacking (spawn farming style). Weekend is here, so I'll try this out.
Now, to bring this inline with the thread topic : do we need to Teleport to Terminals to make assignments go faster? Yes and no. We do need something to keep the action happening compared to autopiloting to and from the action. I think it's a mistake to design a mission system that requires 3 acct's to maintain constant action. Teleporting to terminals would improve solo acct assignment running, but as others have stated, the real fix is a (pending) mission revamp.
Spawn farming, as I have done it, could be done with a solo acct, but is simply more efficient with 2-3 accts - and the action is mostly non stop = more pew pew = more fun. Travel time is a non issue compared to assignments so would not benfit from teleporting to terminals.
So I've tried to listen to the more experienced players; I tested out what was discussed, and I've said my piece. Hope you guys have fun out there on Nia !!