Can we just admit that the 3DS has better specs then the PS Vita, which is why it gets the games?

Here are the Official Nintendo 3DS specs:

ARM11

Differences from ARM9

In terms of instruction set, the ARM11 builds on the preceding ARM9 generation. It incorporates all ARM926EJ-S features and adds the ARMv6 instructions for media support (SIMD) and accelerating IRQ response.

Microarchitecture improvements in ARM11 cores include:

SIMD instructions which can double MPEG-4 and audio digital signal processing algorithm speed

Cache is physically addressed, solving many cache aliasing problems and reducing context switch overhead

Unaligned and mixed-endian data access is supported

Reduced heat production and lower overheating risk

Redesigned pipeline, supporting faster clock speeds (target up to 1 GHz)

Longer: 8 (vs 5) stages

Out-of-order completion for some operations (e.g. stores)

Dynamic branch prediction/folding (like XScale)

Cache misses don't block execution of non-dependent instructions

Load/store parallelism

ALU parallelism

64-bit data paths

JTAG debug support (for halting, stepping, breakpoints, and watchpoints) was simplified. The EmbeddedICE module was replaced with an interface which became part of the ARMv7 architecture. The hardware tracing modules (ETM and ETB) are compatible, but updated, versions of those used in the ARM9. In particular, trace semantics were updated to address parallel instruction execution and data transfers.

ARM makes an effort to promote good Verilog coding styles and techniques. This ensures semantically rigorous designs, preserving identical semantics throughout the chip design flow, which included extensive use of formal verification techniques. Without such attention, integrating an ARM11 with third party designs could risk exposing hard-to-find latent bugs. Due to ARM cores being integrated into many different designs, using a variety of logic synthesis tools and chip manufacturing processes, the impact of its register-transfer level (RTL) quality is magnified many times.[3] The ARM11 generation focused more on synthesis than previous generations, making such concerns be more of an issue.

Cores

There are four ARM11 cores:

ARM1136[4]

ARM1156, introduced Thumb2 instructions

ARM1176, introduced security extensions[5]

ARM11MPcore, introduced multicore support

PICA200

Specification

65 nm Single Core [7](max. clock frequency 400 MHz)

pixel performance: 800 Mpixel/s

1600 Mpixel/s

vertex performance: 15.3 Mpolygon/s

160Mtriangle/s

Power consumption: 0.5-1.0 mW/MHz

Frame Buffer max. 4095×4095 pixels

Supported pixel formats: RGBA 4-4-4-4, RGB 5-6-5, RGBA 5-5-5-1, RGBA 8-8-8-8

Vertex program (ARB_vertex_program)

Render-to-Texture

MipMap

Bilinear texture filtering

Alpha blending

Full-scene anti-aliasing (2×2)

Polygon offset

8-bit stencil buffer

24-bit depth buffer

Single/Double/Triple buffer

DMP's MAESTRO-2G technology

per pixel lighting

procedural texture

refraction mapping

subdivision primitive

shadow

gaseous object rendering