Depends on how you define 'better'. Some people are more sensitive to price, others need lower resistance (specially critical with Parallel builds), some are about size or ease of builds, others look for something in between. That diagram is good for Parallel builds, or you switch the battery wiring to series, and you have a good basic series build. But remember, in a series build, it's even more important not to over drain your batteries (high chance of battery failure in series then in parallel if you take them too low).
[ biased ]
In my
biased opinion the microFET boards I'm selling on eBay win in several categories. The microFET's have a surface mount MOSFET & resistor on aboard which really helps the easy of building and size requirements. The PSMN0R9-25 MOSFET I use for the assembled parts also have 'better' specs for lower resistance then 3034's. If you search in the forums & OSH, you'll see that others have recommended that MOSFET or some slightly worse ones. The disadvantage of getting a board from OSH is you have to solder those tiny parts to the board (which I think david4500 will agree is a pain for people without experience).
[ /biased ]
Notice the board size compared to the MOSFET ... the MOSFET I used was a 3034, so that board is TINY! The width of the board is about the same as the 3034, but it's thinner, easier to solder too, and the length after having the wires soldered will be less then a 3034 even after you cut most of the leads off.
I've been trying to hold off until several people from here have given me unbiased feedback on the boards ... but can't hold it in much longer!
P.S. the schematic only shows one battery, but it can be a parallel or series build.
P.S.S. microFET is simply the name I gave to them since they were so small.