D'you know what? I just love the choice, the variety and the different experiences to be found in driving different versions of the same loco!

Take the two currently available Class 67models for example, of which one is arguably "easier" to drive than the other: there are times when I'm well up for the challenge of the more complex one and other times when i just want an easier time of it, perhaps after a hard day at work. There are also times when I prefer the cab of one to the other, other times the opposite.
I'm fortunate in that I could afford to buy both and am glad that I bought both, for each gives me a different experience, neither being "better" than the other to me - just different. However, if funds had been an issue and I could only have afforded to have bought one or the other, then I'd have carefully picked through the opinions on here, in the light of my own preferences, and chosen accordingly. You cannot have too much choice, and I'm grateful for the fact that a sim that started out simply with just a Black 5, a Deltic and a Class 47 (I think that's all we had back in 2007!) has expanded to the point where there are actually very few loco classes or multiple units that are not available in one form or another.
I simply cannot understand that the degree of choice available to us could possibly be the basis of complaint by some members here. If there are two versions of the same loco, well just read, research, watch the developers' videos and buy the one you think will suit your purpose best. But please don't blame the manufacturers for placing you in that relatively comfortable position - that would be a little like complaining to Heinz that their baked beans don't taste as good as Branstons' baked beans. Let's face it - if you felt that way, you'd surely just buy Branstons' beans all the time and get on with your life. To continue the food analogy, the time for moaning might come if there's no food available at all.
To put all this in "real-life" context - TS2015 is simply a game, albeit one that is taken very seriously in some quarters. The cost of buying the new DTG Voyager, if you already have the one by JT, equates to around four pints of ale that you might like to drink (half a night out for some of my work colleagues)...
Just my two penny-worth.
Ash