OYW have a lot of panel lines. Yeah, it's giving a lot of nightmare, too . Unlike the clean and plain 2.0, you'll throw away your gundam marker and started to washing for god's sake .

What else good about OYW? Apart from the more contemporary design, I guess nothing else yet I personally prefer ver2.0's retro style. The ver2.0 is the better MG with a full set of weapons and a core fighter (with a sweet little stand), but the price is a whopping 1000 yen more.

It depends on what you like. If you're interested in collecting RX78s you might as well get the whole set lol... OYW, 1.5, 1.0, Perfect Gundam etc... I think the G-fighter is a bit expensive for such a goofy kit but the details are super intricate. Would fit right in place next to the ver2.0 though hehe.

RM135 is not bad for the ver2.

I got the OYW ver. of RX-78-2 and I think its damn nice. Quit gundam d though... but kena poison these days lololo

Good price, esp when yen value is high now.

125 for OYW is a bit high, considering that you could easily get a Titans MKII which IMO is a better kit than the OYW RX78.
Or better still, find Char's Zaku to compliment your Gundam ver2.0 hehe...

J, S, F... all of them are pretty similar, depending on what you want.

Choose J, and you'll get extra missiles but lose out on feet boosters plus a tiny backpack.
Choose S, and you'll get a nice-looking (but pretty useless) elevator but you get the most leg boosters and the largest backpack.
Choose F, and you'll get an absolutely pathetic doorknob but you get additional bazooka parts.

I deliberately left out the 4500 yen Zaku IIs as they cost more, obviously.