Frame geometry thoughts.
A lot depends on the type of riding/racing you do, also the style of your riding.
For myself, I like a frame that has a slack seat-tube (73.5 deg for a 53.5cm C-C height), also a slack head-tube with a 45mm rake fork, to give a trail of 58mm.
This set-up gives a frame that is very nice for long rides, stage-racing, but not too suited to crit's (which I hate, and don't race). It also is better for seated climbing, not so much for OOTS climbing at low speeds, due to the "twitchiness".
The ride characteristic is that it is very fast handling at lower speeds, but becomes more stable as speed goes up - ideal for descending very fast with confidence and stability, with low-speed cornering being very quick. It places your weight more toward the rear of the bike, rather than over the front, like you get with most "crit-style" frames.
If you have a trail measurement of less than 55mm, it will tend to be slower steering at low speeds, becoming more twitchy as the speed increases. For a "neutral" feel, you should be looking at 54 - 56mm. A "crit" frame is usually in the range of 52 - 54mm trail.
As a reference, my road frames have 58mm trail, my TT bike is designed for a 61mm trail - I like them STABLE at high speed, faster/twitchier at low speeds.
Frames with the slack geometry are not easy to find in the smaller sizes, I use custom frames which meet my build & needs.