NB: the comments below relate to an old version of the Kity 419 and an old version of the TS200. Axminster recently refreshed the TS200 design, and Kity's brand has changed too. I have no direct knowledge of the most current versions of either model. Please check the details for yourself on the saw you choose to buy: don't take my word for it!
The Kity's design makes a zero-clearance insert almost impossible to make, although you can get round this with a sled or ZCI on one side only. It's easier on the Axminster, because of the different throat shape, although not ideal there either.
If you want a cast iron top, consider an Axminster TS-200 over the Kity. Having a cast iron/steel top makes magnetically clamped tools and guards practical, which is probably a good thing. Normally the crown guard mounts on the riving knife, which is (a) inconvenient and (b) probably not very strong, but altering this on the Kity I think would be hard. On the TS200 you can mag-mount guards, jigs and featherboards, etc., if you wish, and there are some good designs for mag-mount guards out there. But the Kity top won't rust ;-)
The other big difference is that the TS200 has separate handwheels for rise/fall and arbour tilt. The Kity has a single one that's dual purpose. Some people have had to replace the handwheel (around £40 I believe) because it's a plastic-on-steel, gear + rack arrangement for the tilt, which wears if not looked after. I've removed the spring on mine (you'll understand if you buy one), which may stave off damage a bit, as it's harder to graunch the gears.
Both saws have 3x M8 bolts for the motor mounting. There's very little clearance to spanner one of these, necessary when adjusting the belt and/or cleaning. I've replaced mine with dome-headed Allen bolts, which helps.
On the ones I have, the tilt pivot adjustments (trunnion mountings) are a better design on the Axminster, allowing for far easier adjustment of the blade alignment. My Kity is an old one though, and, since the problem is absolutely maddeningly stupid and the fix both cheap and blindingly obvious, I'd hope Kity have sorted it on later versions. In short, make up a fairly thick, oblong steel plate with an M6 tapped hole at each end (30mm spacing, I think but measure it yourself!), file the small lugs off the aluminium 'pillow blocks' and use the plate instead of the nuts and anti-shake washers. Adjustment becomes very simple: one Allen key from above the deck is all that's really necessary. The original system was designed by an utter moron.
The TS200 has this sensible arrangement already, and slightly more range of movement, should that be necessary. As I said though, my Kity was made a long time ago, and I should hope they've changed it long since.
The accessories are identical for the two machines (depending on age). Not all the internals are identical (obviously given the mechanics), but there are many common parts.
Personally, I'd take a good look at the Axminster before deciding on either. Both are built down to a price, incidentally, so don't expect marvels for twopence, but they're very functional within the price range.
Beyond the comments above on the differences, it largely comes down to your preferred colour scheme
E.
(yes, I presently own both.)
